研究者詳細 - 山口　茂弘

Iyoshi, S; Yoshihara, M; Nakamura, K; Sugiyama, M; Koya, Y; Kitami, K; Uno, K; Mogi, K; Tano, S; Tomita, H; Kajiwara, K; Taki, M; Yamaguchi, S; Nawa, A; Kajiyama, H

INTERNATIONAL JOURNAL OF CANCER 149 巻 ( 11 ) 頁： 1961 - 1972 2021年12月

Electron-Deficient Heteroacenes that Contain Two Boron Atoms: Near-Infrared Fluorescence Based on a Push-Pull Effect** 査読有り

Ito, M; Sakai, M; Ando, N; Yamaguchi, S

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 60 巻 ( 40 ) 頁： 21853 - 21859 2021年9月

Regio- and Stereoselective 1,2-Carboboration of Ynamides with Aryldichloroboranes 査読有り国際共著

You, C; Sakai, M; Daniliuc, CG; Bergander, K; Yamaguchi, S; Studer, A

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 60 巻 ( 40 ) 頁： 21697 - 21701 2021年9月

Boron-Doped Polycyclic π-Electron Systems with an Antiaromatic Borole Substructure That Forms Photoresponsive B-P Lewis Adducts 査読有り国際共著

Ando, N; Yamada, T; Narita, H; Oehlmann, NN; Wagner, M; Yamaguchi, S

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 143 巻 ( 26 ) 頁： 9944 - 9951 2021年7月

Late-stage functionalisation of alkyne-modified phospha-xanthene dyes: lysosomal imaging using an off-on-off type of pH probe 査読有り

Ogasawara, H; Tanaka, Y; Taki, M; Yamaguchi, S

CHEMICAL SCIENCE 12 巻 ( 22 ) 頁： 7902 - 7907 2021年6月

Donor-acceptor-acceptor-type near-infrared fluorophores that contain dithienophosphole oxide and boryl groups: effect of the boryl group on the nonradiative decay 査読有り

Sugihara, Y; Inai, N; Taki, M; Baumgartner, T; Kawakami, R; Saitou, T; Imamura, T; Yanai, T; Yamaguchi, S

CHEMICAL SCIENCE 12 巻 ( 18 ) 頁： 6333 - 6341 2021年5月

Dual Trapping of a Metastable Planarized Triarylborane π-System Based on Folding and Lewis Acid-Base Complexation for Seeded Polymerization 査読有り

Choi, H; Ogi, S; Ando, N; Yamaguchi, S

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 143 巻 ( 7 ) 頁： 2953 - 2961 2021年2月

Twofold C-H Activation Enables Synthesis of a Diazacoronene-Type Fluorophore with Near Infrared Emission Through Isosteric Replacement 査読有り国際共著

Gressies, S; Ito, M; Sakai, M; Osaki, H; Kim, JH; Gensch, T; Daniliuc, C; Ando, N; Yamaguchi, S; Glorius, F

CHEMISTRY-A EUROPEAN JOURNAL 27 巻 ( 8 ) 頁： 2753 - 2759 2021年2月

Fused Thiophene-S,S-dioxide-Based Super-Photostable Fluorescent Marker for Lipid Droplets 査読有り

Taki, M; Kajiwara, K; Yamaguchi, E; Sato, Y; Yamaguchi, S

ACS MATERIALS LETTERS 3 巻 ( 1 ) 頁： 42 - 49 2021年1月

Phosphole P-Oxide-Containing pi-Electron Materials: Synthesis and Applications in Fluorescence Imaging

Yamaguchi Shigehiro, Fukazawa Aiko, Taki Masayasu

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 75 巻 ( 11 ) 頁： 1179 - 1187 2017年11月

Color-tunable fluorescent nanoparticles encapsulating trialkylsilyl-substituted pyrene liquids

Taki Masayasu, Azeyanagi Saki, Hayashi Kenzo, Yamaguchi Shigehiro

JOURNAL OF MATERIALS CHEMISTRY C 5 巻 ( 8 ) 頁： 2142 - 2148 2017年2月

A strap strategy for construction of an excited-state intramolecular proton transfer (ESIPT) system with dual fluorescence.

Suzuki N, Fukazawa A, Nagura K, Saito S, Kitoh-Nishioka H, Yokogawa D, Irle S, Yamaguchi S

Angewandte Chemie (International ed. in English) 53 巻 ( 31 ) 頁： 8231 - 5 2014年7月

Regioselective Unsymmetrical Tetraallylation of C-60 through Palladium Catalysis

Nambo Masakazu, Wakamiya Atsushi, Yamaguchi Shigehiro, Itami Kenichiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 131 巻 ( 42 ) 頁： 15112 - + 2009年10月

Design and synthesis of boron-containing functional pi-electron materials

Wakamiya Atsushi, Yamaguchi Shigehiro

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 66 巻 ( 9 ) 頁： 858 - 868 2008年9月

Crystallographic and chiroptical studies on tetraarylferrocenes for use as chiral rotary modules for molecular machines.

Muraoka T, Kinbara K, Wakamiya A, Yamaguchi S, Aida T

Chemistry (Weinheim an der Bergstrasse, Germany) 13 巻 ( 6 ) 頁： 1724 - 30 2007年

Boron as a key component for new pi-electron materials

Yamaguchi Shigehiro, Wakamiya Atsushi

PURE AND APPLIED CHEMISTRY 78 巻 ( 7 ) 頁： 1413 - 1424 2006年7月

Bis-silicon-bridged stilbene homologues synthesized by new intramolecular reductive double cyclization

Yamaguchi S, Xu CH, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 125 巻 ( 45 ) 頁： 13662 - 13663 2003年11月

Impact of boron desymmetrization on supramolecular polymerization of BODIPY dyes 査読有り国際共著 Open Access

Tischer, TB; Fernández, Z; Borsdorf, L; Daniliuc, CG; Yamaguchi, S; Ogi, S; Fernández, G

ORGANIC CHEMISTRY FRONTIERS 12 巻 ( 2 ) 頁： 414 - 421 2025年1月

Secretion of mitochondrial DNA via exosomes promotes inflammation in Behçet's syndrome 査読有り

Konaka, H; Kato, Y; Hirano, T; Tsujimoto, K; Park, J; Koba, T; Aoki, W; Matsuzaki, Y; Taki, M; Koyama, S; Itotagawa, E; Jo, T; Hirayama, T; Kawai, T; Ishii, KJ; Ueda, M; Yamaguchi, S; Akira, S; Morita, T; Maeda, Y; Nishide, M; Nishida, S; Shima, Y; Narazaki, M; Takamatsu, H; Kumanogoh, A

EMBO JOURNAL 42 巻 ( 20 ) 頁： e112573 2023年10月

A Kinetically Stabilized Nitrogen-Doped Triangulene Cation: Stable and NIR Fluorescent Diradical Cation with Triplet Ground State 査読有り

Arikawa, S; Shimizu, A; Shiomi, D; Sato, K; Takui, T; Sotome, H; Miyasaka, H; Murai, M; Yamaguchi, S; Shintani, R

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 62 巻 ( 29 ) 頁： e202302714 2023年7月

Flattened 1D fragments of fullerene C60 that exhibit robustness toward multi-electron reduction 査読有り

Hayakawa, M; Sunayama, N; Takagi, SI; Matsuo, Y; Tamaki, A; Yamaguchi, S; Seki, S; Fukazawa, A

NATURE COMMUNICATIONS 14 巻 ( 1 ) 頁： 2741 2023年5月

Manipulation of Spin Polarization in Boron-Substituted Graphene Nanoribbons 招待有り査読有り国際共著

Sun, KW; Silveira, OJ; Saito, S; Sagisaka, K; Yamaguchi, S; Foster, AS; Kawai, S

ACS NANO 16 巻 ( 7 ) 頁： 11244 - 11250 2022年6月

Late-stage modification of π-electron systems based on asymmetric oxidation of a medium-sized sulfur-containing ring 査読有り

Hayakawa, M; Horike, S; Hijikata, Y; Yasui, K; Yamaguchi, S; Fukazawa, A

CHEMICAL COMMUNICATIONS 58 巻 ( 15 ) 頁： 2548 - 2551 2022年2月

Bridging pico-to-nanonewtons with a ratiometric force probe for monitoring nanoscale polymer physics before damage 査読有り国際誌

Kotani, R; Yokoyama, S; Nobusue, S; Yamaguchi, S; Osuka, A; Yabu, H; Saito, S

NATURE COMMUNICATIONS 13 巻 ( 1 ) 頁： 303 - 303 2022年1月

Extended π-Electron Delocalization in Quinoid-Based Conjugated Polymers Boosts Intrachain Charge Carrier Transport

Mikie, T; Hayakawa, M; Okamoto, K; Iguchi, K; Yashiro, S; Koganezawa, T; Sumiya, M; Ishii, H; Yamaguchi, S; Fukazawa, A; Osaka, I

CHEMISTRY OF MATERIALS 33 巻 ( 21 ) 頁： 8183 - 8193 2021年11月

Excited-state conformation capture by supramolecular chains towards triplet-involved organic emitters 査読有り国際共著

Liu, H; Ando, N; Yamaguchi, S; Naumov, P; Zhang, HY

CHINESE CHEMICAL LETTERS 32 巻 ( 5 ) 頁： 1669 - 1674 2021年5月

Organic phosphorescent polymorphs induced by various halogen bonds with stimuli-responsive single/dual phosphorescence switching 査読有り国際共著

Liu, H; Liu, WT; Ando, N; Yamaguchi, S; Zhang, HY

JOURNAL OF MATERIALS CHEMISTRY C 9 巻 ( 8 ) 頁： 2738 - 2743 2021年2月

Dithieno[a,e]pentalenes: Highly Antiaromatic Yet Stable π-Electron Systems without Bulky Substituents 査読有り

Usuba, J; Hayakawa, M; Yamaguchi, S; Fukazawa, A

CHEMISTRY-A EUROPEAN JOURNAL 27 巻 ( 5 ) 頁： 1482 - 1482 2021年1月

Dithieno[a,e]pentalenes: Highly Antiaromatic Yet Stable π-Electron Systems without Bulky Substituents.

Usuba J, Hayakawa M, Yamaguchi S, Fukazawa A

Chemistry (Weinheim an der Bergstrasse, Germany) 27 巻 ( 5 ) 頁： 1638 - 1647 2021年1月

Letters from Japan: Characteristic Approaches to Contemporary Organic Chemistry

Yamaguchi Shigehiro

ORGANIC LETTERS 22 巻 ( 24 ) 頁： 9406 - 9407 2020年12月

Hydrophobicity-driven folding and seeded polymerization of cystine-based dimeric diamides in aqueous media

Fukaya Natsumi, Ogi Soichiro, Kawashiro Midori, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 56 巻 ( 85 ) 頁： 12901 - 12904 2020年11月

Covalent Self-Labeling of Tagged Proteins with Chemical Fluorescent Dyes in BY-2 Cells and Arabidopsis Seedlings.

Iwatate RJ, Yoshinari A, Yagi N, Grzybowski M, Ogasawara H, Kamiya M, Komatsu T, Taki M, Yamaguchi S, Frommer WB, Nakamura M

The Plant cell 32 巻 ( 10 ) 頁： 3081 - 3094 2020年10月

Magnetism of Topological Boundary States Induced by Boron Substitution in Graphene Nanoribbons.

Friedrich N, Brandimarte P, Li J, Saito S, Yamaguchi S, Pozo I, Peña D, Frederiksen T, Garcia-Lekue A, Sánchez-Portal D, Pascual JI

Physical review letters 125 巻 ( 14 ) 頁： 146801 2020年9月

A Near-Infrared Emissive pi-Conjugated Polymer Consisting of an Excited-State Intramolecular Proton Transfer Unit

Suzuki Naoya, Wakioka Masayuki, Ozawa Fumiyuki, Yamaguchi Shigehiro

ASIAN JOURNAL OF ORGANIC CHEMISTRY 9 巻 ( 9 ) 頁： 1326 - 1332 2020年9月

Long-Lived Charge-Transfer State from B-N Frustrated Lewis Pairs Enchained in Supramolecular Copolymers.

Adelizzi B, Chidchob P, Tanaka N, Lamers BAG, Meskers SCJ, Ogi S, Palmans ARA, Yamaguchi S, Meijer EW

Journal of the American Chemical Society 142 巻 ( 39 ) 頁： 16681 - 16689 2020年9月

Phosphole-Oxide-Based Fluorescent Probe for Super-resolution Stimulated Emission Depletion Live Imaging of the Lysosome Membrane

Wang Chenguang, Taki Masayasu, Kajiwara Keiji, Wang Junwei, Yamaguchi Shigehiro

ACS MATERIALS LETTERS 2 巻 ( 7 ) 頁： 705 - 711 2020年7月

Effects of Amino Group Substitution on the Photophysical Properties and Stability of Near-Infrared Fluorescent P-Rhodamines.

Grzybowski M, Taki M, Kajiwara K, Yamaguchi S

Chemistry (Weinheim an der Bergstrasse, Germany) 26 巻 ( 35 ) 頁： 7912 - 7917 2020年6月

Multistep Photoisomerization of Dimesitylboron-Functionalized Stilbene Analogues

Ge Yuxin, Ando Naoki, Liu Lijie, Wang Xiang, Sauriol Francoise, Yamaguchi Shigehiro, Wu Gang, Wang Suning

ORGANIC LETTERS 22 巻 ( 8 ) 頁： 3258 - 3262 2020年4月

Donor-Acceptor Materials Exhibiting Thermally Activated Delayed Fluorescence Using a Planarized N-Phenylbenzimidazole Acceptor

Sauve Ethan R., Paeng Jaesuk, Yamaguchi Shigehiro, Hudson Zachary M.

JOURNAL OF ORGANIC CHEMISTRY 85 巻 ( 1 ) 頁： 108 - 117 2020年1月

Hydrophobicity and CH/π-interaction-driven self-assembly of amphiphilic aromatic hydrocarbons into nanosheets. 査読有り

Nishikawa T, Narita H, Ogi S, Sato Y, Yamaguchi S

Chemical communications (Cambridge, England) 55 巻 ( 99 ) 頁： 14950 - 14953 2019年12月

[eta(5)-Cp*B-Mes](+): A Masked Potent Boron Lewis Acid

Tseng Hsi-Ching, Shen Chao-Tang, Matsumoto Kentaro, Shih Ding-Nan, Liu Yi-Hung, Peng Shie-Ming, Yamaguchi Shigehiro, Lin Ya-Fan, Chiu Ching-Wen

ORGANOMETALLICS 38 巻 ( 22 ) 頁： 4516 - 4521 2019年11月

The Effect of Branching on the One- and Two-Photon Absorption, Cell Viability, and Localization of Cationic Triarylborane Chromophores with Dipolar versus Octupolar Charge Distributions for Cellular Imaging. 査読有り

Griesbeck S, Michail E, Rauch F, Ogasawara H, Wang C, Sato Y, Edkins RM, Zhang Z, Taki M, Lambert C, Yamaguchi S, Marder TB

Chemistry (Weinheim an der Bergstrasse, Germany) 25 巻 ( 57 ) 頁： 13164 - 13175 2019年10月

Near-infrared fluorescein dyes containing a tricoordinate boron atom

Ando Naoki, Soutome Hiroki, Yamaguchi Shigehiro

CHEMICAL SCIENCE 10 巻 ( 33 ) 頁： 7816 - 7821 2019年9月

Monitoring Fluorescence Response of Amphiphilic Flapping Molecules in Compressed Monolayers at the Air-Water Interface 査読有り

Nakanishi Waka, Saito Shohei, Sakamoto Naoki, Kashiwagi Akihiro, Yamaguchi Shigehiro, Sakai Hideki, Ariga Katsuhiko

CHEMISTRY-AN ASIAN JOURNAL 14 巻 ( 16 ) 頁： 2869 - 2876 2019年8月

A photostable fluorescent marker for the superresolution live imaging of the dynamic structure of the mitochondrial cristae. 査読有り国際誌

Wang C, Taki M, Sato Y, Tamura Y, Yaginuma H, Okada Y, Yamaguchi S

Proceedings of the National Academy of Sciences of the United States of America 116 巻 ( 32 ) 頁： 15817 - 15822 2019年8月

Structurally Constrained Boron-, Nitrogen-, Silicon-, and Phosphorus-Centered Polycyclic pi-Conjugated Systems

Hirai Masato, Tanaka Naoki, Sakai Mika, Yamaguchi Shigehiro

CHEMICAL REVIEWS 119 巻 ( 14 ) 頁： 8291 - 8331 2019年7月

Planarized B,N-phenylated dibenzoazaborine with a carbazole substructure: electronic impact of the structural constraint

Ando Mikinori, Sakai Mika, Ando Naoki, Hirai Masato, Yamaguchi Shigehiro

ORGANIC & BIOMOLECULAR CHEMISTRY 17 巻 ( 22 ) 頁： 5500 - 5504 2019年6月

Optimization of Aqueous Stability versus pi-Conjugation in Tetracationic Bis(triarylborane) Chromophores: Applications in Live-Cell Fluorescence Imaging

Griesbeck Stefanie, Ferger Matthias, Czernetzi Corinna, Wang Chenguang, Bertermann Ruediger, Friedrich Alexandra, Haehnel Martin, Sieh Daniel, Taki Masayasu, Yamaguchi Shigehiro, Marder Todd B.

CHEMISTRY-A EUROPEAN JOURNAL 25 巻 ( 32 ) 頁： 7679 - 7688 2019年6月

Tuning the pi-bridge of quadrupolar triarylborane chromophores for one- and two-photon excited fluorescence imaging of lysosomes in live cells

Griesbeck Stefanie, Michail Evripidis, Wang Chenguang, Ogasawara Hiroaki, Lorenzen Sabine, Gerstner Lukas, Zang Theresa, Nitsch Joern, Sato Yoshikatsu, Bertermann Ruediger, Taki Masayasu, Lambert Christoph, Yamaguchi Shigehiro, Marder Todd B.

CHEMICAL SCIENCE 10 巻 ( 20 ) 頁： 5405 - 5422 2019年5月

Seeded Polymerization of an Amide-Functionalized Diketopyrrolopyrrole Dye in Aqueous Media

Ogi Soichiro, Fukaya Natsumi, Arifin, Skjelstad Bastian Bjerkem, Hijikata Yuh, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 25 巻 ( 30 ) 頁： 7303 - 7307 2019年5月

Organic Letters 2.0: A New Beginning

Carreira Erick M., Ding Kuiling, Brimble Margaret, Liu Hung-wen, Chiu Pauline, Maulide Nuno, Prasad Kavirayani R., Xi Zhenfeng, Reisman Sarah E., Yamaguchi Shigehiro, Ritter Tobias, Yu Jin-Quan

ORGANIC LETTERS 21 巻 ( 1 ) 頁： 1 - 4 2019年1月

Negative fluorescence anisotropy of phosphole oxide-based dyes in nematic liquid crystals 査読有り

Ohzono Takuya, Yatabe Tetsuo, Wang Chenguang, Fukazawa Aiko, Yamaguchi Shigehiro

COMMUNICATIONS CHEMISTRY 1 巻頁： 52 2018年9月

Phosphorus-containing fluorophores for bio-imaging

Yamaguchi Shigehiro

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 256 巻 2018年8月

End-Capping pi-Conjugated Systems with Medium-Sized Sulfur-Containing Rings: A Route Towards Solution-Processable Air-Stable Semiconductors 査読有り

Fukazawa Aiko, Toda Yusuke, Hayakawa Masahiro, Sekioka Anna, Ishii Hiroyuki, Okamoto Toshihiro, Takeya Jun, Hijikata Yuh, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 24 巻 ( 44 ) 頁： 11503 - 11510 2018年8月

Donor-pi-Acceptor Type Unsymmetrical Triarylborane-Based Fluorophores: Synthesis, Fluorescence Properties, and Photostability

Ito Masato, Ito Emi, Hirai Masato, Yamaguchi Shigehiro

JOURNAL OF ORGANIC CHEMISTRY 83 巻 ( 15 ) 頁： 8449 - 8456 2018年8月

Mechanochromic Luminescent Tetrathiazolylthiophenes: Evaluating the Role of Intermolecular Interactions through Pressure and Temperature-Dependent Raman Spectroscopy

Mosca S., Milani A., Pena-Alvarez M., Yamaguchi S., Hernandez V., Ruiz Delgado M. C., Castiglioni C.

JOURNAL OF PHYSICAL CHEMISTRY C 122 巻 ( 30 ) 頁： 17537 - 17543 2018年8月

A Highly Photostable Near-Infrared Labeling Agent Based on a Phospha-rhodamine for Long-Term and Deep Imaging. 査読有り国際誌

Grzybowski M, Taki M, Senda K, Sato Y, Ariyoshi T, Okada Y, Kawakami R, Imamura T, Yamaguchi S

Angewandte Chemie (International ed. in English) 57 巻 ( 32 ) 頁： 10137 - 10141 2018年8月

Electronic Properties of Substitutionally Boron-Doped Graphene Nanoribbons on a Au(111) Surface 査読有り

Carbonell-Sanroma Eduard, Garcia-Lekue Aran, Corso Martina, Vasseur Guillaume, Brandimarte Pedro, Lobo-Checa Jorge, de Oteyza Dimas G., Li Jingcheng, Kawai Shigeki, Saito Shohei, Yamaguchi Shigehiro, Enrique Ortega J., Sanchez-Portal Daniel, Ignacio Pascual Jose

JOURNAL OF PHYSICAL CHEMISTRY C 122 巻 ( 28 ) 頁： 16092 - 16099 2018年7月

A planarized B-phenyldibenzoborepin: impact of structural constraint on its electronic properties and Lewis acidity

Ando Naoki, Kushida Tomokatsu, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 54 巻 ( 41 ) 頁： 5213 - 5216 2018年5月

A far-red emitting fluorescent probe for cytosolic Ca2+ion based on phospha-fluorescein scaffold

Ogasawara Hiroaki, Taki Masayasu, Sato Yoshikatsu, Yamaguchi Shigehiro

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 255 巻 2018年3月

Near infrared two-photon-excited and -emissive dyes based on a strapped excited-state intramolecular proton-transfer (ESIPT) scaffold. 査読有り

Suzuki N, Suda K, Yokogawa D, Kitoh-Nishioka H, Irle S, Ando A, Abegão LMG, Kamada K, Fukazawa A, Yamaguchi S

Chemical science 9 巻 ( 10 ) 頁： 2666 - 2673 2018年3月

Seeded Polymerization through the Interplay of Folding and Aggregation of an Amino-Acid-based Diamide

Ogi Soichiro, Matsumoto Kentaro, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57 巻 ( 9 ) 頁： 2339 - 2343 2018年2月

A far-red fluorescent probe based on a phospha-fluorescein scaffold for cytosolic calcium imaging

Ogasawara Hiroaki, Grzybowski Marek, Hosokawa Riho, Sato Yoshikatsu, Taki Masayasu, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 54 巻 ( 3 ) 頁： 299 - 302 2018年1月

Antiaromatic Dithieno-1,2-dihydro-1,2-diborin Splits Diatomic Hydrogen

Araki Takafumi, Hirai Masato, Wakamiya Atsushi, Piers Warren E., Yamaguchi Shigehiro

CHEMISTRY LETTERS 46 巻 ( 12 ) 頁： 1714 - 1717 2017年12月

Phosphole P-Oxide-Containing pi-Electron Materials: Synthesis and Applications in Fluorescence Imaging

Yamaguchi Shigehiro, Fukazawa Aiko, Taki Masayasu

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 75 巻 ( 11 ) 頁： 1179-1187 2017年11月

Structural Monitoring of the Onset of Excited-State Aromaticity in a Liquid Crystal Phase.

Hada M, Saito S, Tanaka S, Sato R, Yoshimura M, Mouri K, Matsuo K, Yamaguchi S, Hara M, Hayashi Y, Röhricht F, Herges R, Shigeta Y, Onda K, Miller RJD

Journal of the American Chemical Society 139 巻 ( 44 ) 頁： 15792 - 15800 2017年11月

An Expedient Procedure for the Synthesis of Benzo[4,5]silolo[2,3-b]thiophenes and Related Systems

Baehr Susanne, Ogasawara Hiroaki, Yamaguchi Shigehiro, Oestreich Martin

ORGANOMETALLICS 36 巻 ( 20 ) 頁： 4013 - 4019 2017年10月

Boron-Stabilized Planar Neutral π-Radicals with Well-Balanced Ambipolar Charge-Transport Properties.

Kushida T, Shirai S, Ando N, Okamoto T, Ishii H, Matsui H, Yamagishi M, Uemura T, Tsurumi J, Watanabe S, Takeya J, Yamaguchi S

Journal of the American Chemical Society 139 巻 ( 41 ) 頁： 14336 - 14339 2017年10月

Structural Monitoring of the Onset of Excited-State Aromaticity in a Liquid Crystal Phase 査読有り

Hada, Masaki, Saito, Shohei, Tanaka, Sei'ichi, Sato, Ryuma, Yoshimura, Masahiko, Mouri, Kazuhiro, Matsuo, Kyohei, Yamaguchi, Shigehiro, Hara, Mitsuo, Hayashi, Yasuhiko, Röhricht, Fynn, Herges, Rainer, Shigeta, Yasuteru, Onda, Ken, Miller, R J Dwayne

Journal of the American Chemical Society 139 巻頁： 15792 - 15800 2017年10月

Photochemical Intramolecular C-H Addition of Dimesityl(hetero)arylboranes through a [1,6]-Sigmatropic Rearrangement

Ando Naoki, Fukazawa Aiko, Kushida Tomokatsu, Shiota Yoshihito, Itoyama Shuhei, Yoshizawa Kazunari, Matsui Yasunori, Kuramoto Yutaro, Ikeda Hiroshi, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56 巻 ( 40 ) 頁： 12210 - 12214 2017年9月

Selective Conversion of P=O-Bridged Rhodamines into P=O-Rhodols: Solvatochromic Near-Infrared Fluorophores

Grzybowski Marek, Taki Masayasu, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 23 巻 ( 53 ) 頁： 13028 - 13032 2017年9月

Photochemical Intramolecular C−H Addition of Dimesityl(hetero)arylboranes through a [1,6]-Sigmatropic Rearrangement 査読有り

Naoki Ando, Aiko Fukazawa, Tomokatsu Kushida, Yoshihito Shiota, Shuhei Itoyama, Kazunari Yoshizawa, Yasunori Matsui, Yutaro Kuramoto, Hiroshi Ikeda, Shigehiro Yamaguchi

Angewandte Chemie 129 巻 ( 40 ) 頁： 12378 2017年9月

Synthesis of seminaphtho-phospha-fluorescein dyes based on the consecutive arylation of aryldichlorophosphines

Fukazawa Aiko, Usuba Junichi, Adler Raul A., Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 53 巻 ( 61 ) 頁： 8565 - 8568 2017年8月

Super-Photostable Phosphole-Based Dye for Multiple-Acquisition Stimulated Emission Depletion Imaging.

Wang C, Taki M, Sato Y, Fukazawa A, Higashiyama T, Yamaguchi S

Journal of the American Chemical Society 139 巻 ( 30 ) 頁： 10374 - 10381 2017年8月

ESIPT-active organic compounds with white luminescence based on crystallization-induced keto emission (CIKE)

Liu Huapeng, Cheng Xiao, Zhang Houyu, Wang Yue, Zhang Hongyu, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 53 巻 ( 55 ) 頁： 7832 - 7835 2017年7月

Structures and Physical Properties of Chemically Reduced Diindenosiloles and Their pi-Extended Derivatives

Ryo Takano, Ryo Shintani, Aiko Fukazawa, Shigehiro Yamaguchi, Koji Nakabayashi, Shin-ichi Ohkoshi, Kyoko Nozaki

ORGANOMETALLICS 36 巻 ( 14 ) 頁： 2646 - 2653 2017年7月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：AMER CHEMICAL SOC

Diindenosilole Si1, a silicon-bridged fulvalene derivative, was successfully reduced to its dianions using various alkali metals, and the structures were characterized by X-ray crystallographic analysis. Radical anions of Si1 as well as dianions of pi-extended Si3 could also be synthesized, and the structural and physical properties were systematically compared. It was also found that the NMR spectra of dianions Si1(2-) and Si3(2-) show countercation and temperature dependency for their signal broadness, indicating the possible existence of thermal interconversion between closed-shell singlet states and open-shell triplet states.

DOI： 10.1021/acs.organomet.7b00260

Web of Science

A Near-Infrared Dye That Undergoes Multiple Interconversions through Acid-Base Equilibrium and Reversible Redox Processes 査読有り

Asai Kengo, Fukazawa Aiko, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56 巻 ( 24 ) 頁： 6848 - 6852 2017年6月

Flapping viscosity probe that shows polarity-independent ratiometric fluorescence

Ryota Kotani, Hikaru Sotome, Hajime Okajima, Soichi Yokoyama, Yumi Nakaike, Akihiro Kashiwagi, Chigusa Mori, Yuki Nakada, Shigehiro Yamaguchi, Atsuhiro Osuka, Akira Sakamoto, Hiroshi Miyasaka, Shohei Saito

JOURNAL OF MATERIALS CHEMISTRY C 5 巻 ( 21 ) 頁： 5248 - 5256 2017年6月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ROYAL SOC CHEMISTRY

A variety of fluorescent molecular viscosity probes have been widely used for mapping the local viscosity in cells and for monitoring the microenvironments in materials. However, their viscosity-sensing structural design still relies strongly on molecular rotors featuring intramolecular rotational dynamics. Here we report flapping molecules (FLAP) as a ratiometric viscosity-sensing fluorophore that shows polarity-independent dual fluorescence. Viscosity-sensing mechanism is based on a unique V-shaped-to-planar conformational change in the singlet excited state (S-1), in which the flexible motion of an eight-membered ring plays an important role. Fast conformational dynamics have been studied by time-resolved spectroscopies, and the viscochromic properties have been quantitatively analyzed. Application of FLAP to monitoring the curing process of epoxy resins has also been demonstrated, in which other typical environment-sensitive dyes did not work as a local viscosity probe.

DOI： 10.1039/c7tc01533j

Web of Science

Synthesis and Physical Properties of Strained Doubly Phosphorus-Bridged Biaryls and Viologens

Greulich Tobias W., Yamaguchi Eriko, Doerenkamp Carsten, Luebbesmeyer Maximilian, Daniliuc Constantin G., Fukazawa Aiko, Eckert Hellmut, Yamaguchi Shigehiro, Studer Armido

CHEMISTRY-A EUROPEAN JOURNAL 23 巻 ( 25 ) 頁： 6029 - 6033 2017年5月

Facile Synthesis of Polycyclic Pentalenes with Enhanced Huckel Antiaromaticity

Oshima Hiroya, Fukazawa Aiko, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56 巻 ( 12 ) 頁： 3270 - 3274 2017年3月

Color-tunable fluorescent nanoparticles encapsulating trialkylsilyl-substituted pyrene liquids

Masayasu Taki, Saki Azeyanagi, Kenzo Hayashi, Shigehiro Yamaguchi

JOURNAL OF MATERIALS CHEMISTRY C 5 巻 ( 8 ) 頁： 2142 - 2148 2017年2月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ROYAL SOC CHEMISTRY

The development of emissive liquid dyes containing trialkylsilyl groups, and their use in the preparation of fluorescent organic nanoparticles (FONs) are described. A series of trialkylsilyl-substituted pyrenes is synthesized as oils, whose viscosity depends on the nature of the alkyl groups. The neat compounds show intense excimer emission with maxima of around 460-480 nm and quantum yields of 0.5-0.7. The low viscosity (eta = 162 cP) of 2-tri((Z)-3-hexen-1-yl)silylpyrene (1) allows the preparation of spherical nanoparticles (NP1) in the presence of 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC) and cholesterol. NP1 shows a hydrodynamic diameter of 161 +/- 48 nm and maintains an excimer emission similar to that of neat 1. NP1 in water spontaneously absorbs dopant dyes into its liquid core, and simultaneous doping with two dyes is also possible. When using green-emissive C545T and red-emissive DCJTB dyes as dopants, efficient Forster resonance energy transfer (FRET) occurs from the pyrene excimer to the dyes. Extensive emission color tuning is thus achieved as evident from a plot of the emission colors of doped and undoped NP1 on the CIE 1931 xy chromaticity diagram. These results demonstrate the efficacy of the present design strategy for color-tunable FONs that do not require premixing of dopant dyes.

DOI： 10.1039/c6tc05208h

Web of Science

Color-tunable fluorescent nanoparticles encapsulating trialkylsilyl-substituted pyrene liquids

Masayasu Taki, Saki Azeyanagi, Kenzo Hayashi, Shigehiro Yamaguchi, Shigehiro Yamaguchi

Journal of Materials Chemistry C 5 巻頁： 2142 - 2148 2017年1月

© The Royal Society of Chemistry. The development of emissive liquid dyes containing trialkylsilyl groups, and their use in the preparation of fluorescent organic nanoparticles (FONs) are described. A series of trialkylsilyl-substituted pyrenes is synthesized as oils, whose viscosity depends on the nature of the alkyl groups. The neat compounds show intense excimer emission with maxima of around 460-480 nm and quantum yields of 0.5-0.7. The low viscosity (η = 162 cP) of 2-tri((Z)-3-hexen-1-yl)silylpyrene (1) allows the preparation of spherical nanoparticles (NP1) in the presence of 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC) and cholesterol. NP1 shows a hydrodynamic diameter of 161 ± 48 nm and maintains an excimer emission similar to that of neat 1. NP1 in water spontaneously absorbs dopant dyes into its liquid core, and simultaneous doping with two dyes is also possible. When using green-emissive C545T and red-emissive DCJTB dyes as dopants, efficient Förster resonance energy transfer (FRET) occurs from the pyrene excimer to the dyes. Extensive emission color tuning is thus achieved as evident from a plot of the emission colors of doped and undoped NP1 on the CIE 1931 xy chromaticity diagram. These results demonstrate the efficacy of the present design strategy for color-tunable FONs that do not require premixing of dopant dyes.

DOI： 10.1039/c6tc05208h

Scopus

Quantum Dots Embedded in Graphene Nanoribbons by Chemical Substitution. 査読有り

Carbonell-Sanromà E, Brandimarte P, Balog R, Corso M, Kawai S, Garcia-Lekue A, Saito S, Yamaguchi S, Meyer E, Sánchez-Portal D, Pascual JI

Nano letters 17 巻 ( 1 ) 頁： 50 - 56 2017年1月

Steric Shielding vs Structural Constraint in a Boron-Containing Polycyclic Aromatic Hydrocarbon 査読有り

V. M. Hertz, N. Ando, M. Hirai, M. Bolte, H.-W. Lerner, S. Yamaguchi, M. Wagner

Organometallics 2016年12月

Stable Red-Emissive Cationic Dithienotropylium Dyes 査読有り

Asai Kengo, Fukazawa Aiko, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 22 巻 ( 49 ) 頁： 17571 - 17575 2016年12月

A Soluble Dynamic Complex Strategy for the Solution-Processed Fabrication of Organic Thin-Film Transistors of a Boron-Containing Polycyclic Aromatic Hydrocarbon 査読有り

Matsuo Kyohei, Saito Shohei, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 55 巻 ( 39 ) 頁： 11984 - 11988 2016年9月

Light-melt adhesive based on dynamic carbon frameworks in a columnar liquid-crystal phase. 査読有り

Saito S, Nobusue S, Tsuzaka E, Yuan C, Mori C, Hara M, Seki T, Camacho C, Irle S, Yamaguchi S

Nature communications 7 巻頁： 12094 2016年7月

A Macrocyclic Fluorophore Dimer with Flexible Linkers: Bright Excimer Emission with a Long Fluorescence Lifetime. 査読有り

Osaki H, Chou CM, Taki M, Welke K, Yokogawa D, Irle S, Sato Y, Higashiyama T, Saito S, Fukazawa A, Yamaguchi S

Angewandte Chemie (International ed. in English) 55 巻 ( 25 ) 頁： 7131 - 7135 2016年6月

Pyridyl Directed Catalyst-Free trans-Hydroboration of Internal Alkynes 査読有り

Yuan Kang, Suzuki Naoya, Mellerup Soren K., Wang Xiang, Yamaguchi Shigehiro, Wang Suning

ORGANIC LETTERS 18 巻 ( 4 ) 頁： 720 - 723 2016年2月

A biphenyl containing two electron-donating and two electron-accepting moieties: a rigid and small donor-acceptor-donor ladder system 査読有り

Greulich Tobias W., Suzuki Naoya, Daniliuc Constantin G., Fukazawa Aiko, Yamaguchi Eriko, Studer Armido, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 52 巻 ( 11 ) 頁： 2374 - 2377 2016年

A planarized 9-phenylanthracene: a simple electron-donating building block for fluorescent materials 査読有り

Iwahara Hideaki, Kushida Tomokatsu, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 52 巻 ( 6 ) 頁： 1124 - 1127 2016年

Phospha-fluorescein: a red-emissive fluorescein analogue with high photobleaching resistance. 査読有り

Fukazawa A, Suda S, Taki M, Yamaguchi E, Grzybowski M, Sato Y, Higashiyama T, Yamaguchi S

Chemical communications (Cambridge, England) 52 巻 ( 6 ) 頁： 1120 - 1123 2016年

Boron-doped nanographene: Lewis acidity, redox properties, and battery electrode performance 査読有り

Osumi Shinichiro, Saito Shohei, Dou Chuandong, Matsuo Kyohei, Kume Keita, Yoshikawa Hirofumi, Awagaa Kunio, Yamaguchi Shigehiro

CHEMICAL SCIENCE 7 巻 ( 1 ) 頁： 219 - 227 2016年

A Phosphole Oxide Based Fluorescent Dye with Exceptional Resistance to Photobleaching: A Practical Tool for Continuous Imaging in STED Microscopy. 査読有り

Wang C, Fukazawa A, Taki M, Sato Y, Higashiyama T, Yamaguchi S

Angewandte Chemie (International ed. in English) 54 巻 ( 50 ) 頁： 15213 - 15217 2015年12月

A Benzophosphole P-Oxide with an Electron-Donating Group at 3-Position: Enhanced Fluorescence in Polar Solvents 査読有り

Yamaguchi Eriko, Fukazawa Aiko, Kosaka Youhei, Yokogawa Daisuke, Irle Stephan, Yamaguchi Shigehiro

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 88 巻 ( 11 ) 頁： 1545 - 1552 2015年11月

A Phosphole Oxide Based Fluorescent Dye with Exceptional Resistance to Photobleaching: A Practical Tool for Continuous Imaging in STED Microscopy 査読有り

C. Wang, A. Fukazawa, M. Taki, Yoshikatsu Sato, T. Higashiyama, S. Yamaguchi

Angew. Chem. Int. Ed. 2015年10月

Designs of Functional pi-Electron Materials based on the Characteristic Features of Boron 査読有り

Wakamiya Atsushi, Yamaguchi Shigehiro

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 88 巻 ( 10 ) 頁： 1357 - 1377 2015年10月

Boron-Doped Nanographene: Lewis Acidity, Redox Properties, and Battery Electrode Performance 査読有り

S. Osumi, S. Saito, C. Dou, K. Matsuo, K. Kume, H. Yoshikawa, K. Awaga, S. Yamaguchi

Chem. Sci. 2015年9月

Atomically-Controlled Substitutional Boron-Doping of Graphene Nanoribbons 査読有り

S. Kawai, S. Saito, S. Osumi, S. Yamaguchi, A. S. Foster, P. Spijker, E. Meyer

Nat. Commun. 2015年8月

Benzophosphole P-Oxide with an Electron-Donating Group at 3-Position: Enhanced Fluorescence in Polar Solvents 査読有り

E. Yamaguchi, A. Fukazawa, Y. Kosaka, D. Yokogawa, S. Irle, S. Yamaguchi

2015年8月

Atomically controlled substitutional boron-doping of graphene nanoribbons. 査読有り

Kawai S, Saito S, Osumi S, Yamaguchi S, Foster AS, Spijker P, Meyer E

Nature communications 6 巻頁： 8098 2015年8月

A Nonaromatic Thiophene-Fused Heptalene and Its Aromatic Dianion 査読有り

Oshima Hiroya, Fukazawa Aiko, Sasamori Takahiro, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 54 巻 ( 26 ) 頁： 7636 - 7639 2015年6月

A Red-emitting Ratiometric Fluorescent Probe Based on a Benzophosphole P-Oxide Scaffold for the Detection of Intracellular Sodium Ions 査読有り

M. Taki, H. Ogasawara, H. Osaki, A. Fukazawa, Y. Sato, K. Ogasawara, T. Higashiyama, S. Yamaguchi

Chem. Commun. 51 巻頁： 11880-11883 2015年6月

A Planarized Triphenylborane Mesogen: Discotic Liquid Crystals with Ambipolar Charge-Carrier Transport Properties 査読有り

Kushida Tomokatsu, Shuto Ayumi, Yoshio Masafumi, Kato Takashi, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 54 巻 ( 23 ) 頁： 6922 - 6925 2015年6月

A Nonaromatic Thiophene-fused Heptalene and Its Aromatic Dianion 査読有り

H. Oshima, A. Fukazawa, T. Sasamori, S. Yamaguchi

Angew. Chem. Int. Ed. 54 巻頁： 636-7639 2015年5月

A Cyclic Octithiophene Containing β,β'-Linkages 査読有り

K. Asai, A. Fukazawa, S. Yamaguchi

Chem. Commun. 51 巻頁： 6096-6099 2015年5月

A Planarized Triphenylborane Mesogen: Discotic Liquid Crystals with Ambipolar Charge-Carrier Transport Properties 査読有り

T. Kushida, A. Shuto, M. Yoshio, T. Kato, S. Yamaguchi

Angew. Chem. Int. Ed. 54 巻頁： 6922-6925 2015年4月

Environment-sensitive fluorescent probe: a benzophosphole oxide with an electron-donating substituent. 査読有り

Yamaguchi E, Wang C, Fukazawa A, Taki M, Sato Y, Sasaki T, Ueda M, Sasaki N, Higashiyama T, Yamaguchi S

Angewandte Chemie (International ed. in English) 54 巻 ( 15 ) 頁： 4539 - 4543 2015年4月

Environment-Sensitive Fluorescent Probe: A Benzophosphole Oxide with an Electron-Donating Substituent 査読有り

E. Yamaguchi, C. Wang, A. Fukazawa, M. Taki, Y. Sato, T. Sasaki, M. Ueda, N. Sasaki, T. Higashiyama, S. Yamaguchi

Angew. Chem. Int. Ed. 54 巻頁： 4539-4543 2015年3月

Highly Bent Crystals Formed by Restrained π-Stacked Columns Connected via Alkylene Linkers with Variable Conformations 査読有り

Highly Bent Crystals Formed by Restrained π-Stacked Columns Connected via Alkylene Linkers with Variable Conformations

Chem. Sci. 6 巻頁： 2354-2359 2015年2月

Fluorescent benzene-centered mono-, bis- and tris-triazapentadiene-boron complexes 査読有り

Glotzbach Christoph, Goedeke Nadine, Froehlich Roland, Daniliuc Constantin-Gabriel, Saito Shohei, Yamaguchi Shigehiro, Wuerthwein Ernst-Ulrich

DALTON TRANSACTIONS 44 巻 ( 20 ) 頁： 9659 - 9671 2015年

A cyclic octithiophene containing beta,beta '-linkages 査読有り

Asai Kengo, Fukazawa Aiko, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 51 巻 ( 28 ) 頁： 6096 - 6099 2015年

記述言語：日本語掲載種別：研究論文（学術雑誌）

オリゴチオフェンは代表的なπ電子化合物群の一つであり，有機電子材料の基本骨格として用いられている．これまでのオリゴチオフェン誘導体の多くは，π共役の拡張という観点から，α位で連結したものが多数報告されている．一方で，β位での結合は，π共役の拡張においては不利であるものの，多様な分子構造の構築を可能にし，最近では平面とは異なる特徴的な分子構造をもつオリゴチオフェン誘導体が報告されている．このような背景のもと今回我々は，β位結合を介した電子共役の本質を明らかにすべく，２本のα-クォーターチオフェン鎖をβ位結合を介して連結した環状オクチチオフェンを開発した．この化合物は，チオフェン環同士の二面角が部分的に大きくねじれた楕円型の環構造をもち，特徴的な弱い緑色の蛍光を示す．α-クォーターチオフェンが青色発光を示すのとは対照的な結果であり，環構造が励起状態での大きな構造変化を引き起こしたといえる．また，環状オ

DOI： 10.1039/c5cc00570a

Web of Science

PubMed

A red-emitting ratiometric fluorescent probe based on a benzophosphole P-oxide scaffold for the detection of intracellular sodium ions 査読有り

Taki Masayasu, Ogasawara Hiroaki, Osaki Hiroshi, Fukazawa Aiko, Sato Yoshikatsu, Ogasawara Kimi, Higashiyama Tetsuya, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 51 巻 ( 59 ) 頁： 11880 - 11883 2015年

Highly bent crystals formed by restrained pi-stacked columns connected via alkylene linkers with variable conformations 査読有り

Chou Chih-Ming, Nobusue Shunpei, Saito Shohei, Inoue Daishi, Hashizume Daisuke, Yamaguchi Shigehiro

CHEMICAL SCIENCE 6 巻 ( 4 ) 頁： 2354 - 2359 2015年

記述言語：日本語掲載種別：研究論文（学術雑誌）

パイ共役分子の固体物性は、一般に結晶中の分子配列に大きく依存するため、分子配向を制御することは重要な課題である。我々は、分子配向制御の戦略として、柔軟な2本のアルキレン鎖によって2つのパイ共役骨格を連結した環状二量体を合成し、僅かなアルキレン鎖の違いに応じて、固体状態においてパイ共役骨格間の配向が大きく異なるパッキング構造をとることを報告している。今回我々は、アントラセンを中心骨格とする大きなパイ共役骨格を異なる長さのアルキレン鎖で架橋した環状二量体を合成し、僅かに鎖長の長い分子のみが大きく歪曲した結晶を形成することを見出した。鎖長の長い環状分子は、アルキレン鎖の配座の違いによって、環状構造の隙間の空間を埋めるように、より柔軟に異なる配座をとることができる。そのため、異なる配座を有する分子からなる2つの相が結晶形成の際に混ざることで、曲がった結晶成長が起こったものであると考えられる。これらの知

DOI： 10.1039/c4sc03849e

Web of Science

PubMed

Photodissociation of B-N Lewis Adducts: A Partially Fused Trinaphthylborane with Dual Fluorescence 査読有り

Matsuo Kyohei, Saito Shohei, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 136 巻 ( 36 ) 頁： 12580 - 12583 2014年9月

Dearomatization-Induced Transannular Cyclization: Synthesis of Electron-Accepting Thiophene-S,S-Dioxide-Fused Biphenylene 査読有り

Fukazawa Aiko, Oshima Hiroya, Shimizu Soji, Kobayashi Nagao, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 136 巻 ( 24 ) 頁： 8738 - 8745 2014年6月

A Strap Strategy for Construction of an Excited-State Intramolecular Proton Transfer (ESIPT) System with Dual Fluorescence 査読有り

N. Suzuki, A. Fukazawa, K. Nagura, S. Saito, H. Kitoh-Nishioka, D. Yokogawa, S. Irle, S. Yamaguchi

Angew. Chem. Int. Ed. 53 巻頁： 8231-8235 2014年6月

A Strap Strategy for Construction of an Excited-State Intramolecular Proton Transfer (ESIPT) System with Dual Fluorescence 査読有り

N. Suzuki, A. Fukazawa, K. Nagura, S. Saito, H. Kitoh-Nishioka, D. Yokogawa, S. Irle, S. Yamaguchi

Angew. Chem. Int. Ed. 53 巻頁： 8231-8235 2014年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

発光特性は，最も魅力的な有機化合物の「機能」の一つである．種々の発光現象の中でも，励起状態における分子内プロトン移動（excited-state intramolecular proton transfer, ESIPT）に起因する発光は，異常に大きなストークスシフトや，幅広い発光波長が実現できることから興味深く，白色発光材料や蛍光プロープへの応用の可能性が示されつつある．一方で，従来のESIPT 活性な有機色素の分子設計は，ほとんどが励起状態でのケト–エノール互変異性に基づくものに限られていた．これに対し本研究では，水素結合供与能をもつ含ピロールπ電子系に対し，水素結合受容能をもつ窒素原子を柔軟なアルキル鎖でくくりつける，すなわち「励起状態を制御するための機能性ストラップの導入」という斬新な分子設計により，新たな ESIPT 色素の開発に成功した．この化合物は，励起状態においてプロトン移動前とプロトン移動後の２つの準安定な構造をもち，各々から異なる波長で蛍光を示すことによ

Dearomatization-Induced Transannular Cyliczation: Synthesis of Electron-Accepting Thiophene-S,S-Dioxide-Fused Biphenylene 査読有り

A. Fukazawa, H. Oshima, S. Shimizu, N. Kobayashi, and S. Yamaguchi

J. Am. Chem. Soc. 136 巻頁： 8738-8745 2014年6月

Heterotriangulenes pi-Expanded at Bridging Positions 査読有り

Chou Chih-Ming, Saito Shohei, Yamaguchi Shigehiro

ORGANIC LETTERS 16 巻 ( 11 ) 頁： 2868 - 2871 2014年6月

The B(C6F5)(3) Boron Lewis Acid Route to Arene-Annulated Pentalenes 査読有り

Chen Chao, Harhausen Marcel, Fukazawa Aiko, Yamaguchi Shigehiro, Froehlich Roland, Daniliuc Constantin G., Petersen Jeffrey L., Kehr Gerald, Erker Gerhard

CHEMISTRY-AN ASIAN JOURNAL 9 巻 ( 6 ) 頁： 1671 - 1681 2014年6月

Heterotriangulenes π-Expanded at Bridging Positions 査読有り

C. -M. Chou, S. Saito, S. Yamaguchi

Org. Lett. 16 巻頁： 2868-2871 2014年5月

Synthesis of Pyridine N-Oxide-BF2CF3 Complexes and Their Fluorescence Properties 査読有り

Nishida Tomoaki, Fukazawa Aiko, Yamaguchi Eriko, Oshima Hiroya, Yamaguchi Shigehiro, Kanai Motomu, Kuninobu Yoichiro

CHEMISTRY-AN ASIAN JOURNAL 9 巻 ( 4 ) 頁： 1026 - 1030 2014年4月

Hybridization of a Flexible Cyclooctatetraene Core and Rigid Aceneimide Wings for Multiluminescent Flapping pi Systems 査読有り

Yuan Chunxue, Saito Shohei, Camacho Cristopher, Kowalczyk Tim, Irle Stephan, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 20 巻 ( 8 ) 頁： 2193 - 2200 2014年2月

Hydroxyphenyl-Substituted Benzophosphole Oxides: Impact of the Intramolecular Hydrogen Bond on the Fluorescence Properties

Fukazawa Aiko, Osaki Hiroshi, Yamaguchi Shigehiro

ASIAN JOURNAL OF ORGANIC CHEMISTRY 3 巻 ( 2 ) 頁： 122 - 127 2014年2月

Hydroxyphenyl-Substituted Benzophosphole Oxides: Impact of the Intramolecular Hydrogen Bond on the Fluorescence Properties 査読有り

Aiko Fukazawa, Hiroshi Osaki, Shigehiro Yamaguchi

ASIAN JOURNAL OF ORGANIC CHEMISTRY 3 巻 ( 2 ) 頁： 122 - 127 2014年2月

COD ID: 4120128 査読有り

Nagura Kazuhiko, Saito Shohei, Yusa Hitoshi, Yamawaki Hiroshi, Fujihisa Hiroshi, Sato Hiroyasu, Shimoikeda Yuichi, Yamaguchi Shigehiro

Crystallography Open Database 2014年

Constraint-induced structural deformation of planarized triphenylboranes in the excited state 査読有り

Tomokatsu Kushida, Cristopher Camacho, Ayumi Shuto, Stephan Irle, Masayasu Muramatsu, Tetsuro Katayama, Syoji Ito, Yutaka Nagasawa, Hiroshi Miyasaka, Eri Sakuda, Noboru Kitamura, Zhiguo Zhou, Atsushi Wakamiya, Shigehiro Yamaguchi

CHEMICAL SCIENCE 5 巻 ( 4 ) 頁： 1296 - 1304 2014年

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：ROYAL SOC CHEMISTRY

Triphenylboranes planarized with three methylene bridges exhibited dual fluorescence bands around 340 and 400 nm despite their structural constraint. To elucidate the origin, their excited state dynamics were experimentally and theoretically studied. The measurements of fluorescence lifetimes and transient absorption spectra indicated that the planarized triphenylboranes adopt two local minimum structures in the lowest-energy excited singlet (S-1) state. The TD-DFT potential energy surface of the S-1 state possesses at least two minimum energy structures associated with a planar and a bowl-shaped molecular structure. The theoretical S-1-S-0 transition energies at these geometries were in good agreement with the experimentally observed values. These results indicated that the plane-to-bowl structural relaxation in the S-1 state is the origin of the dual fluorescence. Based on the calculated partial atomic charge on the boron atom, the structural deformation to the bowl-shaped structure results in an increase in the electron density on the boron center. Thus, the enhanced intramolecular charge-transfer character plays a role in this structural deformation. Similar behavior was also observed for trigonally pi-expanded planarized borane derivatives. These results provide an important implication that structural constraint in a planar fashion is not only a strategy to construct a rigid skeleton, but also a viable mechanism to impart flexibility to the skeleton.

DOI： 10.1039/c3sc52751d

Web of Science

pi-Extended Planarized Triphenylboranes with Thiophene Spacers

Shuto Ayumi, Kushida Tomokatsu, Fukushima Tatsuya, Kaji Hironori, Yamaguchi Shigehiro

ORGANIC LETTERS 15 巻 ( 24 ) 頁： 6234 - 6237 2013年12月

Modification and Unexpected Reactivity of 2-Borylbenzaldimines: Acylated and Silylated Derivatives as Well as Dimeric Compounds

Neue Benedikt, Wakarniya Atsushi, Froehlich Roland, Wibbeling Birgit, Yamaguchi Shigehiro, Wuerthwein Ernst-Ulrich

JOURNAL OF ORGANIC CHEMISTRY 78 巻 ( 23 ) 頁： 11747 - 11755 2013年12月

A Radical Anion of Structurally Constrained Triphenylborane

Kushida Tomokatsu, Yamaguchi Shigehiro

ORGANOMETALLICS 32 巻 ( 22 ) 頁： 6654 - 6657 2013年11月

Diarylated Bi(thieno[2,3-c]thiophene)s: A Ring-Fusing Strategy for Controlling the Molecular Alignment of Oligoarenes 査読有り

Fukazawa Aiko, Kishi Daisuke, Tanaka Yuki, Seki Shu, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 52 巻 ( 46 ) 頁： 12091 - 12095 2013年11月

Constraint-induced Structural Deformation of Planarized Triphenylboranes in the Excited State 査読有り

T. Kushida, C. Camacho, A. Shuto, S. Irle, M. Muramatsu, T. Katayama, S. Ito, Y. Nagasawa, H. Miyasaka, E. Sakuda, N. Kitamura, Z. Zhou, A. Wakamiya, and S. Yamaguchi

Chem. Sci. ５巻頁： 1296-1304 2013年11月

Photochemical Double 5-exo Cyclization of Alkenyl-Substituted Dithienylacetylenes: Efficient Synthesis of Diarylated Dithienofulvalenes 査読有り

Fukazawa Aiko, Karasawa Takashi, Zhang Hongyu, Minemura Kazumitsu, Camacho Cristopher, Wang Jian, Irle Stephan, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 52 巻 ( 40 ) 頁： 10519 - 10523 2013年9月

Diarylated Bi(thieno[2,3-c]thiophene)s: A Ring-fusing Strategy for Controlling the Molecular Alignment of Oligoarenes 査読有り

A. Fukazawa, D. Kishi, Y. Tanaka, S. Seki, and S. Yamaguchi

Angew. Chem. Int. Ed. 52 巻頁： 12091-12095 2013年9月

Photochemical Double 5-exo-dig Cyclization of Alkenyl-substituted Dithienylacetylenes: Efficient Synthesis of Diarylated Dithienofulvalenes 査読有り

A. Fukazawa, T. Karasawa, H. Zhang, K. Minemura, C. Camacho, J. Wang, S. Irle, and S. Yamaguchi

Angew. Chem. Int. Ed. 52 巻頁： 10519-10523 2013年8月

Amplified Spontaneous Emission in Pentathienoacene Dioxides by Direct Optical Pump and by Energy Transfer: Correlation with Photophysical Parameters

Juan Casado, Victor Hernandez, Juan T. Lopez Navarrete, Manuel Algarra, Demetrio A. da Silva Filho, Shigehiro Yamaguchi, Raquel Rondao, J. Sergio Seixas de Melo, Victor Navarro-Fuster, Pedro G. Boj, Maria A. Diaz-Garcia

ADVANCED OPTICAL MATERIALS 1 巻 ( 8 ) 頁： 588 - 599 2013年8月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：WILEY-V C H VERLAG GMBH

Amplified spontaneous emission (ASE) is observed, under optical pump, in polystyrene films doped with two pentathienoacene derivatives functionalised with thienyl-S, S-dioxide groups (compounds 2 and 3). The effect of the dioxide groups on the ASE properties is analysed by comparing the performance with that of its corresponding non-oxidized analogue (1). Films containing either 2 or 3 show ASE at 511 and 574 nm, respectively, when excited directly (at 435 nm) on their absorption bands, showing thresholds and linewidths larger than those obtained from films doped with 1, pumped at 355 nm. ASE is also observed under excitation at 355 nm, in samples containing 1 (host) and either 2 or 3 (guests), due to energy transfer from host to guest. For the blends with 3, the ASE threshold is lower than that obtained when the films are excited directly. Results are interpreted in terms of the photophysical parameters such as absorption capacity, fluorescence efficiency, singlet-to-triplet intersystem crossing leading to triplet-triplet re-absorptions, bimolecular energy-transfer efficiency, efficiency of internal conversion process, etc. State-of-the-art quantum chemical calculations are used in the interpretation of the experimental results.

DOI： 10.1002/adom.201300155

Web of Science

Boracyclophanes: Modulation of the sigma/Character in Boron-Benzene Interactions

Kushida Tomokatsu, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 52 巻 ( 31 ) 頁： 8054 - 8058 2013年7月

Distinct Responses to Mechanical Grinding and Hydrostatic Pressure in Luminescent Chromism of Tetrathiazolylthiophene 査読有り

K. Nagura, S. Saito, H. Yusa, H. Yamawaki, H. Fujihisa, H. Sato, Y. Shimoikeda, and S. Yamaguchi

J. Am. Chem. Soc. 135 巻頁： 10322-10325 2013年7月

Distinct responses to mechanical grinding and hydrostatic pressure in luminescent chromism of tetrathiazolylthiophene. 査読有り

Nagura K, Saito S, Yusa H, Yamawaki H, Fujihisa H, Sato H, Shimoikeda Y, Yamaguchi S

Journal of the American Chemical Society 135 巻 ( 28 ) 頁： 10322 - 10325 2013年7月

A Pentacoordinate Boron-Containing pi-Electron System with CI-B-CI Three-Center Four-Electron Bonds 査読有り

Dou Chuandong, Saito Shohei, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 135 巻 ( 25 ) 頁： 9346 - 9349 2013年6月

A π-Conjugated System with Flexibility and Rigidity that Shows Environment-Dependent RGB Luminescence 査読有り

C. Yuan, S. Saito, C. Camacho, S. Irle, I. Hisaki, S. Yamaguchi

J. Am. Chem. Soc. 135 巻 ( 24 ) 頁： 8842 - 8845 2013年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

発光性の有機分子は、有機ELやバイオイメージングなどの分野で幅広く用いられ，ますますその重要性は増している。本研究では、新しい分子設計の指針として「剛直性と柔軟性のハイブリッド」というコンセプトを提唱し、堅い骨格と柔らかい骨格のそれぞれの長所を活かした新しい発光性材料を開発した。この材料は、一種類の分子からなるにもかかわらず、環境に応じて分子が形を変えることで光の３原色であるRGB（Red、Green、Blue）の３色の発光を示すことができる。ポリマー薄膜に分散させた状態では青色に光り、溶媒に溶かした状態では緑色に光り、分子が集まった結晶状態では赤色に光る。これら３色の光は、それぞれ、分子がV字型に曲がった形、平面型に伸びた形、V字型で積み上がった形から発せられる。エネルギーの大きく異なるRGBの３色の発光を、一つの有機分子で励起波長を変えずに実現したのはこれが初めてとなる。

DOI： 10.1021/ja404198h

Web of Science

PubMed

A π-Conjugated System with Flexibility and Rigidity that Shows Environment-Dependent RGB Luminescence 査読有り

C. Yuan, S. Saito, C. Camacho, S. Irle, I. Hisaki, and S. Yamaguchi

J. Am. Chem. Soc. 135 巻頁： 8842-8845 2013年5月

Fluorescent modular boron systems based on NNN- and ONO-tridentate ligands: self-assembly and cell imaging. 査読有り

Glotzbach C, Kauscher U, Voskuhl J, Kehr NS, Stuart MC, Fröhlich R, Galla HJ, Ravoo BJ, Nagura K, Saito S, Yamaguchi S, Würthwein EU

The Journal of organic chemistry 78 巻 ( 9 ) 頁： 4410 - 4418 2013年5月

Borylated Dibenzoborepin Synthesized via Skeletal Rearrangement and its Photochromism Based on Bora-Nazarov Cyclization 査読有り

A. Iida, S. Saito, T. Sasamori, and S. Yamaguchi

Angew. Chem. Int. Ed. 52 巻頁： 3760-3764 2013年2月

Borylated Dibenzoborepin Synthesized via Skeletal Rearrangement and its Photochromism Based on Bora-Nazarov Cyclization 査読有り

A. Iida, S. Saito, T. Sasamori, S. Yamaguchi

Angew. Chem. Int. Ed. 52 巻頁： 3760-3764 2013年2月

記述言語：英語掲載種別：研究論文（学術雑誌）

3配位ホウ素の一番の特徴は，カルボカチオンと等電子構造にあることである．カルボカチオンを含むπ電子系をホウ素で置換することにより，電荷が中性で，かつ単離可能なπ電子系をつくることができる．それに加えて，高い電子受容性に起因した特異な反応性も付与できる．その一つの例として我々は今回，9位にジメシチルボリル基をもつジベンゾボレピンを予期せず合成することに成功し，この化合物が顕著な吸収特性の変化を伴った光反応性を示すことを見出した．この反応は，Nazarov環化反応のホウ素版として理解できる．反応は，光照射により進行し，生成物は熱的に出発物に再変換されるという可逆性をもつ．生成物は，アリルカチオンの等電子構造であるボラタアリル骨格を含んでおり，狭いHOMO–LUMOギャップ等の特異な電子構造をもつことももう一つの特筆に値する特徴である．新たなフォトクロミック分子系として機能性材料への展開が期待できる．

Thiophene-Fused Bisdehydro[12]annulene That Undergoes Transannular Alkyne Cycloaddition by Either Light or Heat

Fukazawa Aiko, Oshima Hiroya, Shiota Yoshihito, Takahashi Shouya, Yoshizawa Kazunari, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 135 巻 ( 5 ) 頁： 1731 - 1734 2013年2月

Sequential electrophilic and photochemical cyclizations from bis(bithienyl)acetylene to a tetrathienonaphthalene core. 査読有り

Dou C, Saito S, Gao L, Matsumoto N, Karasawa T, Zhang H, Fukazawa A, Yamaguchi S

Organic letters 15 巻 ( 1 ) 頁： 80 - 83 2013年1月

Thermal 8 pi electrocyclic reaction of heteroarene tetramers: new efficient access to pi-extended cyclooctatetraenes 査読有り

Mouri Kazuhiro, Saito Shohei, Hisaki Ichiro, Yamaguchi Shigehiro

CHEMICAL SCIENCE 4 巻 ( 12 ) 頁： 4465 - 4469 2013年

S-Pechmann dye: a thiolactone-containing organic dye with a pronounced electron-accepting character and its solid-state photophysical properties 査読有り

Fukazawa Aiko, Adachi Makoto, Nakakura Ken, Saito Shohei, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 49 巻 ( 64 ) 頁： 7117 - 7119 2013年

Dibenzopentalenes from B(C6F5)(3)-Induced Cyclization Reactions of 1,2-Bis(phenylethynyl)benzenes 査読有り

Chen Chao, Harhausen Marcel, Liedtke Rene, Bussmann Kathrin, Fukazawa Aiko, Yamaguchi Shigehiro, Petersen Jeffrey L., Daniliuc Constantin G., Froehlich Roland, Kehr Gerald, Erker Gerhard

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 52 巻 ( 23 ) 頁： 5992 - 5996 2013年

Benzene-fused BODIPY and fully-fused BODIPY dimer: impacts of the ring-fusing at the b bond in the BODIPY skeleton 査読有り

Wakamiya Atsushi, Murakami Takanori, Yamaguchi Shigehiro

CHEMICAL SCIENCE 4 巻 ( 3 ) 頁： 1002 - 1007 2013年

Borylated dibenzoborepin: synthesis by skeletal rearrangement and photochromism based on bora-Nazarov cyclization. 査読有り

Iida A, Saito S, Sasamori T, Yamaguchi S

Angewandte Chemie (International ed. in English) 52 巻 ( 13 ) 頁： 3760 - 3764 2013年

Modulating the Photoisomerization of N,C-Chelate Organoboranes with Triplet Acceptors

Hudson Zachary M., Ko Soo-Byung, Yamaguchi Shigehiro, Wang Suning

ORGANIC LETTERS 14 巻 ( 21 ) 頁： 5610 - 5613 2012年11月

Boron-Containing PAH as a Substructure of Boron-Doped Graphene 査読有り

C. Dou, S. Saito, K. Matsuo, I. Hisaki, and S. Yamaguchi

Angew. Chem. Int. Ed. 51 巻頁： 12206-12210 2012年10月

TICT Fluorescence of N-borylated 2,5-Diarylpyrroles: A Gear Like Dual Motion in the Excited State 査読有り

T. Taniguchi, J. Wang, S. Irle, and S. Yamaguchi

Dalton Trans. 42 巻頁： 620-624 2012年10月

Polycyclic pi-Electron System with Boron at Its Center 査読有り

Saito Shohei, Matsuo Kyohei, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 134 巻 ( 22 ) 頁： 9130 - 9133 2012年6月

記述言語：日本語掲載種別：研究論文（学術雑誌）

「ホウ素ドープグラフェン」は、半金属的なグラフェンとは異なり半導体特性を示したり、リチウムイオン電池の負極材料として高い電気容量と高速充放電に対する高いサイクル特性を示すことなどから、魅力的な特性をもつ材料として物理化学の分野で注目されている。しかしながら、物理学的な手法によって得ることができる「ホウ素ドープグラフェン」は、分子量も形状も揃っていないことから、科学的な電子状態の解明には至っていない。今回我々は、「ホウ素ドープグラフェン」のボトムアップ合成を意識し、形状のそろった単一化合物として、ホウ素を中央にもつ縮合多環式π共役分子を開発し、その電子状態を詳細に解明することに成功した。 
三配位ホウ素は電子をもたない空のp軌道をもち、π電子系の電子受容性を向上させるのに適した元素である。しかし、有機ホウ素化合物は一般に空気や水に対して不安定であり、材料に用いるにはホウ素を安定化する必要があった

DOI： 10.1021/ja3036042

Web of Science

PubMed

Elucidation of p-Conjugation Modes in Diarene-Fused 1,2-Dihydro-1,2-diborin Dianions 査読有り

Araki Takafumi, Wakamiya Atsushi, Mori Kenji, Yamaguchi Shigehiro

CHEMISTRY-AN ASIAN JOURNAL 7 巻 ( 7 ) 頁： 1594 - 1603 2012年6月

Polycyclic π-Electron System with Boron at Its Center 査読有り

S. Saito, K. Matsuo, and S. Yamaguchi

J. Am. Chem. Soc. 134 巻頁： 9130-9133 2012年5月

Preparation of Dihydroborole Derivatives by a Simple 1,1-Carboboration Route

Feldmann Andreas, Iida Azusa, Froehlich Roland, Yamaguchi Shigehiro, Kehr Gerald, Erker Gerhard

ORGANOMETALLICS 31 巻 ( 6 ) 頁： 2445 - 2451 2012年3月

Planarized Triarylboranes: Stabilization by Structural Constraint and Their Plane-to-Bowl Conversion 査読有り

Zhou Zhiguo, Wakamiya Atsushi, Kushida Tomokatsu, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 134 巻 ( 10 ) 頁： 4529 - 4532 2012年3月

Synthesis and Photophysical Properties of Aryl-Substituted 2-Borylbenzaldimines and Their Extended pi-Conjugated Congeners 査読有り

Neue Benedikt, Froehlich Roland, Wibbeling Birgit, Fukazawa Aiko, Wakamiya Atsushi, Yamaguchi Shigehiro, Wuerthwein Ernst-Ulrich

JOURNAL OF ORGANIC CHEMISTRY 77 巻 ( 5 ) 頁： 2176 - 2184 2012年3月

Planarized Triarylboranes: Stabilization by Structural Constraint and Their Plane-to-Bowl Conversion 査読有り

Z. Zhou, A. Wakamiya, T. Kushida, and S. Yamaguchi

J. Am. Chem. Soc. 134 巻頁： 4529-4532 2012年2月

Substituent Effects on Twisted Internal Charge Transfer Excited States of N-Borylated Carbazoles and (Diphenylamino)boranes

Wang Jian, Wang Ying, Taniguchi Takuhiro, Yamaguchi Shigehiro, Irle Stephan

JOURNAL OF PHYSICAL CHEMISTRY A 116 巻 ( 4 ) 頁： 1151 - 1158 2012年2月

Facile synthesis of biphenyl-fused BODIPY and its property. 査読有り

Hayashi Y, Obata N, Tamaru M, Yamaguchi S, Matsuo Y, Saeki A, Seki S, Kureishi Y, Saito S, Yamaguchi S, Shinokubo H

Organic letters 14 巻 ( 3 ) 頁： 866 - 869 2012年2月

Planarized B-phenylborataanthracene anions: structural and electronic impacts of coplanar constraint 査読有り

Kushida Tomokatsu, Zhou Zhiguo, Wakamiya Atsushi, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS 48 巻 ( 87 ) 頁： 10715 - 10717 2012年

N-Heterocyclic Carbene Boranes as Electron-Donating and Electron-Accepting Components of pi-Conjugated Systems 査読有り

Nagura Kazuhiko, Saito Shohei, Froehlich Roland, Glorius Frank, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 51 巻 ( 31 ) 頁： 7762 - 7766 2012年

Combined experimental and theoretical studies on the photophysical properties of cycloparaphenylenes. 査読有り

Segawa Y, Fukazawa A, Matsuura S, Omachi H, Yamaguchi S, Irle S, Itami K

Organic & biomolecular chemistry 10 巻 ( 30 ) 頁： 5979 - 5984 2012年

Electron-Donating Tetrathienyl-Substituted Borole 査読有り

Araki Takafumi, Fukazawa Aiko, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 51 巻 ( 22 ) 頁： 5484 - 5487 2012年

Heteroarene-fused boroles: what governs the antiaromaticity and Lewis acidity of the borole skeleton?

Iida Azusa, Sekioka Anna, Yamaguchi Shigehiro

CHEMICAL SCIENCE 3 巻 ( 5 ) 頁： 1461 - 1466 2012年

High-performance organic field-effect transistors based on dihexyl-substituted dibenzo[d,d ']thieno[3,2-b;4,5-b ']dithiophene

Miyata Yasuo, Yoshikawa Eiji, Minari Takeo, Tsukagoshi Kazuhito, Yamaguchi Shigehiro

JOURNAL OF MATERIALS CHEMISTRY 22 巻 ( 16 ) 頁： 7715 - 7717 2012年

Highly Flexible pi-Expanded Cyclooctatetraenes: Cyclic Thiazole Tetramers with Head-to-Tail Connection 査読有り

Mouri Kazuhiro, Saito Shohei, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 51 巻 ( 24 ) 頁： 5971 - 5975 2012年

Macrocyclic Restriction with Flexible Alkylene Linkers: A Simple Strategy to Control the Solid-State Properties of pi-Conjugated Systems 査読有り

Saito Shohei, Nakakura Ken, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 51 巻 ( 3 ) 頁： 714 - 717 2012年

A boron-containing PAH as a substructure of boron-doped graphene. 査読有り

Dou C, Saito S, Matsuo K, Hisaki I, Yamaguchi S

Angewandte Chemie (International ed. in English) 51 巻 ( 49 ) 頁： 12206 - 12210 2012年

Synthetic Study of Novel pi-Electron Materials Containing Boron, Nitrogen, and Phosphorus as Key Main Group Elements

Yamaguchi Shigehiro, Fukazawa Aiko

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 69 巻 ( 6 ) 頁： 661 - 670 2011年6月

Synthetic Study of Novel π-Electron Materials Containing Boron, Nitrogen, and Phosphorus as a Key Main Group Elements 査読有り

Shigehiro Yamaguchi, Aiko Fukazawa

有機合成化学協会誌 69 巻 ( 6 ) 頁： 661 - 670 2011年6月

Thiophene-Fused Ladder Boroles with High Antiaromaticity

Iida Azusa, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 133 巻 ( 18 ) 頁： 6952 - 6955 2011年5月

Design, Synthesis, and Characterization of Functionalized Silepins: High Quantum Yield Blue Emitters 査読有り

Mercier Lauren G., Furukawa Shunsuke, Piers Warren E., Wakamiya Atsushi, Yamaguchi Shigehiro, Parvez Masood, Harrington Ross W., Clegg William

ORGANOMETALLICS 30 巻 ( 6 ) 頁： 1719 - 1729 2011年3月

Phosphine Sulfides as an Anchor Unit for Single Molecule Junctions 査読有り

Fukazawa Aiko, Kiguchi Manabu, Tange Satoshi, Ichihashi Yasunori, Zhao Qiang, Takahashi Takuya, Konishi Tatsuya, Murakoshi Kei, Tsuji Yuta, Staykov Aleksandar, Yoshizawa Kazunari, Yamaguchi Shigehiro

CHEMISTRY LETTERS 40 巻 ( 2 ) 頁： 174 - 176 2011年2月

Phosphine Sulfides as an Anchor Unit for Single Molecule Junction 査読有り

A. Fukazawa, M. Kiguchi, S. Tange, Y. Ichihashi, Q. Zhao, T. Takahashi, T. Konishi, K. Murakoshi, Y. Tsuji, A. Staykov, K. Yoshizawa, and S. Yamaguchi

Chem. Lett. 40 巻頁： 174-176 2011年

Synthesis of 1-phospha-2-boraacenaphthenes: reductive 1,2-aryl migration of 1-diarylboryl-8-dichlorophosphinonaphthalenes. 査読有り

Tsurusaki A, Sasamori T, Wakamiya A, Yamaguchi S, Nagura K, Irle S, Tokitoh N

Angewandte Chemie (International ed. in English) 50 巻 ( 46 ) 頁： 10940 - 10943 2011年

Bis(phosphoryl)-Bridged Biphenyls by Radical Phosphanylation: Synthesis and Photophysical and Electrochemical Properties 査読有り

Bruch Achim, Fukazawa Aiko, Yamaguchi Eriko, Yamaguchi Shigehiro, Studer Armido

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 50 巻 ( 50 ) 頁： 12094 - 12098 2011年

Electronic Tuning of Thiazolyl-Capped pi-Conjugated Compounds via a Coordination/Cyclization Protocol with B(C6F5)(3) 査読有り

Job Andre, Wakamiya Atsushi, Kehr Gerald, Erker Gerhard, Yamaguchi Shigehiro

ORGANIC LETTERS 12 巻 ( 23 ) 頁： 5470 - 5473 2010年12月

A Study of 1,2-Dihydro-1,2-azaborine in a pi-Conjugated System 査読有り

Taniguchi Takuhiro, Yamaguchi Shigehiro

ORGANOMETALLICS 29 巻 ( 21 ) 頁： 5732 - 5735 2010年11月

Intense fluorescence of 1-aryl-2,3,4,5-tetraphenylphosphole oxides in the crystalline state 査読有り

Fukazawa Aiko, Ichihashi Yasunori, Yamaguchi Shigehiro

NEW JOURNAL OF CHEMISTRY 34 巻 ( 8 ) 頁： 1537 - 1540 2010年

Thiophene-Fused Phospholo[3,2-b]phospholes and Their Dichalcogenides: Synthesis and Structure-Photophysical Properties Relationships 査読有り

A. Fukazawa, T. Murai, L. Li, Y. Chen, and S. Yamaguchi

C. R. Chimie 2010年

Neutral and oxidized triisopropylsilyl end-capped oligothienoacenes: a combined electrochemical, spectroscopic, and theoretical study. 査読有り

Aragó J, Viruela PM, Ortí E, Malavé Osuna R, Vercelli B, Zotti G, Hernández V, López Navarrete JT, Henssler JT, Matzger AJ, Suzuki Y, Yamaguchi S

Chemistry (Weinheim an der Bergstrasse, Germany) 16 巻 ( 18 ) 頁： 5481 - 5491 2010年

FT Raman and DFT study on a series of all-anti oligothienoacenes end-capped with triisopropylsilyl groups.

Malavé Osuna R, Hernández V, López Navarrete JT, Aragó J, Viruela PM, Ortí E, Suzuki Y, Yamaguchi S, Henssler JT, Matzger AJ

Chemphyschem : a European journal of chemical physics and physical chemistry 10 巻 ( 17 ) 頁： 3069 - 3076 2009年12月

A B-B Bond-Containing Polycyclic pi-Electron System: Dithieno-1,2-dihydro-1,2-diborin and Its Dianion 査読有り

Wakamiya Atsushi, Mori Kenji, Araki Takafumi, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 131 巻 ( 31 ) 頁： 10850 - + 2009年8月

記述言語：日本語掲載種別：研究論文（学術雑誌）

ホウ素を含む環状π共役骨格は、ホウ素の空のp軌道を介した共役により特徴的な電子構造をもつ。その代表例が5員環ボロールであり、4π電子系に由来する反芳香族性をもつ。本研究では、ボロールのホウ素原子をホウ素ーホウ素結合で置き換えたジボリン骨格に着目し、この骨格を含むはじめての拡張π電子系の例として、ジチエノ縮環ジボリンの合成に成功した。そして、この骨格が特異な軌道相互作用により特徴的な光物性を示すこと、ジアニオン種が周辺共役による芳香族性を示すこと、また、ジアニオン種が対カチオンの種類に依存して大きく異なる吸収特性を示すことを明らかにした。

DOI： 10.1021/ja905007s

Web of Science

PubMed

Intramolecular Reductive Double Cyclization of o,o '-Bis(arylcarbonyl)-diphenylacetylenes: Synthesis of Ladder pi-Conjugated Skeletons

Zhang Hongyu, Karasawa Takashi, Yamada Hiroshi, Wakamiya Atsushi, Yamaguchi Shigehiro

ORGANIC LETTERS 11 巻 ( 14 ) 頁： 3076 - 3079 2009年7月

Structural Modification of Silicon-Bridged Ladder Stilbene Oligomers and Distyrylbenzenes

Yamada Hiroshi, Xu Caihong, Fukazawa Aiko, Wakamiya Atsushi, Yamaguchi Shigehiro

MACROMOLECULAR CHEMISTRY AND PHYSICS 210 巻 ( 11 ) 頁： 904 - 916 2009年6月

Long-Lived Exciplex Formation and Delayed Exciton Emission in Bulk Heterojunction Blends of Silole Derivative and Polyfluorene Copolymer: The Role of Morphology on Exciplex Formation and Charge Separation

Benson-Smith Jessica J., Wilson Joanne, Dyer-Smith Clare, Mouri Kazuhiro, Yamaguchi Shigehiro, Murata Hideyuki, Nelson Jenny

JOURNAL OF PHYSICAL CHEMISTRY B 113 巻 ( 22 ) 頁： 7794 - 7799 2009年6月

3,4-Dihydro-3H-pyrrol-2-imines as Conformationally Restrained 1,3-Diazabutadienes: Synthesis, Structural Properties and Protonation 査読有り

Janich Simon, Froehlich Roland, Wilken Andrea, von Zamory Jan, Wakamiya Atsushi, Yamaguchi Shigehiro, Wuerthwein Ernst-Ulrich

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY 2009 巻 ( 13 ) 頁： 2077 - 2087 2009年5月

Electronic structure of bis(benzo)pentathienoacene in gas and solid phase: ultraviolet photoemission spectroscopy and energy band calculation

Yoshida Hiroyuki, Watazu Yuji, Sato Naoki, Okamoto Toshihiro, Yamaguchi Shigehiro

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 95 巻 ( 1 ) 頁： 185 - 191 2009年4月

Coordination-Induced Intramolecular Double Cyclization: Synthesis of Boron-Bridged Dipyridylvinylenes and Dithiazolylvinylenes

Zhao Qiang, Zhang Hongyu, Wakamiya Atsushi, Yamaguchi Shigehiro

SYNTHESIS-STUTTGART ( 1 ) 頁： 127 - 132 2009年1月

FT Raman and DFT Study on a Series of All-anti Oligothienoacenes End-Capped with Triisopropypsilyl Groups

R. M. Osuna, V. Hernández, J. T. L. Navarrete, J. Aragó, P. M. Viruela, E. Ortí, Y. Suzuki, S. Yamaguchi, J. T. Senssler, A. J. Matzger

ChemPhysChem. 10 巻頁： 3069-3076 2009年

Oxidation of End-Capped Pentathienoacenes and Characterization of Their Radical Cations

R. M. Osuna, M. C. R. Delgado, V. V. Hernández, J. T. L. Navarrete, B. Vercelli, G. Zotti, J. J. Novoa, Y. Suzuki, S. Yamaguchi, J. T. Henssler, A. J. Matzger

Chem. Eur. J 15 巻頁： 12346-12361 2009年

Benzo[b]phosphole-Containing π-Electron Systems: Synthesis Based on an Intramolecular trans-Halophosphanylation and Some Insights into Their Properties

A. Fukazawa, Y. Ichihashi, Y. Kosaka, and S. Yamaguchi

Chem. Asian J. 4 巻頁： 1729-1740 2009年

Regioselective Unsymmetrical Tetraallylation of C60 through Palladium Catalysis

M. Nambo, A. Wakamiya, S. Yamaguchi, and K. Itami

J. Am. Chem. Soc. 131 巻頁： 15112-15113 2009年

Ladder pi-Conjugated Materials Containing Main Group Elements

A. Fukazawa, S. Yamaguchi

Chem. Asian J. 4 巻頁： 1386-1400 2009年

Coordination-Induced Intramolecular Double Cyclization: Synthesis of Boron-Bridged Dipyridylvinylenes and Dithiazolylvinylenes

Q. Zhao, H. Zhang, A. Wakamiya, and S. Yamaguchi

Synthesis, 40th special issue 頁： 127-132 2009年

Electronic Structure of Bis(benzo)pentathienoacene in Gas and Solid Phase: Ultraviolet Photoemission Spectroscopy and Energy Band Calculation

H. Yoshida, Y. Watazu, N. Sato, T. Okamoto, and S. Yamaguchi

Appl. Phys. A 95 巻頁： 185-191 2009年

*Intense Solid-State Blue Emission with a Small Stokes' Shift: pi-Stacking Protection of Diphenylanthracene Skeleton

A. Iida and S. Yamaguchi

Chem. Commun. 頁： 3002-3004 2009年

5-Aryl-3,3,4,4-tetramethyl-3,4-dihydro-3H-pyrrol-2-imines

S. Janich, R. Froehlich, A. Wilken, J. von Zamory, A. Wakamiya, S. Yamaguchi, and E.-U. Wuerthwein

Eur. J. Org. Chem. 頁： 2077-2087 2009年

Structural Modification of Silicon-Bridged Ladder Stilbene Oligomers and Distyrylbenzenes

H. Yamada, C. Xu, A. Fukazawa, A. Wakamiya, and S. Yamaguchi

Macro. Chem. Phys. 210 巻頁： 904-916 2009年

Long-Lived Exciplex Formation and Delayed Excition Emission in Bulk Heterojunction Blends of Silole Derivative and Polyfluorene Copolymer: The Role of Morphology on Exciplex Formation and Charge Separation

J. J. Benson-Smith, J. Wilson, C. Dyer-Smith, K. Mouri, S. Yamaguchi, H. Murata, and J. Nelson

J. Phys. Chem. B, 113 巻頁： 7794-7799 2009年

Intramolecular Reductive Double Cyclization of o,o'-Bis(arylcarbonyl)diphenylacetylenes: Synthesis of Ladder π-Conjugated Skeletons

H. Zhang, T. Karasawa, H. Yamada, A. Wakamiya, and S. Yamaguchi

Org. Lett. 11 巻頁： 3076-3079 2009年

Tetraaryl-tetradecahydroporphyrazins: Novel Porphyrin Derivatives Featuring a Cyclic Benzene Ring Tetramer

S. Janich, R. Froehlich, A. Wakamiya, S. Yamaguchi, and E.-U. Wuerthwein

Chem. Eur. J. 15 巻頁： 10457-10463 2009年

Highly Emissive Diborylphenylene-Containing Bis(phenylethynyl)benzenes: Structure–Photophysical Property Correlations and Fluoride Ion Sen

C.-H. Zhao, E. Sakuda, A. Wakamiya, and S. Yamaguchi

Chem. Eur. J. 15 巻頁： 10603-10612 2009年

*A B-B Bond-Containing Polycyclic π-Electron System: Dithieno-1,2-dihydro-1,2-diborin and Its Dianion 査読有り

A. Wakamiya, K. Mori, T. Araki, and S. Yamaguchi

J. Am. Chem. Soc. 131 巻頁： 10850-10851 2009年

Intense solid-state blue emission with a small Stokes' shift: pi-stacking protection of the diphenylanthracene skeleton

Iida Azusa, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS ( 21 ) 頁： 3002 - 3004 2009年

Benzo[b]phosphole-Containing pi-Electron Systems: Synthesis Based on an Intramolecular trans-Halophosphanylation and Some Insights into Their Properties

Fukazawa Aiko, Ichihashi Yasunori, Kosaka Youhei, Yamaguchi Shigehiro

CHEMISTRY-AN ASIAN JOURNAL 4 巻 ( 11 ) 頁： 1729 - 1740 2009年

5-Aryl-3,3,4,4-tetramethyl-3,4-dihydro-3H-pyrrol-2-imines

S. Janich, R. Froehlich, A. Wilken, J. von Zamory, A. Wakamiya, S. Yamaguchi, E.-U. Wuerthwein

Eur. J. Org. Chem. 頁： 2077-2087 2009年

Ladder pi-Conjugated Materials Containing Main-Group Elements

Fukazawa Aiko, Yamaguchi Shigehiro

CHEMISTRY-AN ASIAN JOURNAL 4 巻 ( 9 ) 頁： 1386 - 1400 2009年

Highly Emissive Diborylphenylene-Containing Bis(phenylethynyl)benzenes: Structure-Photophysical Property Correlations and Fluoride Ion Sensing

Zhao Cui-Hua, Sakuda Eri, Wakamiya Atsushi, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 15 巻 ( 40 ) 頁： 10603 - 10612 2009年

Oxidation of end-capped pentathienoacenes and characterization of their radical cations.

Malavé Osuna R, Ruiz Delgado MC, Hernández V, López Navarrete JT, Vercelli B, Zotti G, Novoa JJ, Suzuki Y, Yamaguchi S, Henssler JT, Matzger AJ

Chemistry (Weinheim an der Bergstrasse, Germany) 15 巻 ( 45 ) 頁： 12346 - 12361 2009年

Tetraaryl Tetradecahydroporphyrazins: Novel Porphyrin Derivatives Featuring a Cyclic Benzene-Ring Tetramer

Janich Simon, Froehlich Roland, Wakamiya Atsushi, Yamaguchi Shigehiro, Wuerthwein Ernst-Ulrich

CHEMISTRY-A EUROPEAN JOURNAL 15 巻 ( 40 ) 頁： 10457 - 10463 2009年

Regioselective Unsymmetrical Tetraallylation of C60 through Palladium Catalysis

M. Nambo, A. Wakamiya, S. Yamaguchi, K. Itami

J. Am. Chem. Soc. 131 巻頁： 15112-15113 2009年

Synthesis and Electronic Spectra of Disilatriptycene Oligomers: Evidence for Electronic Delocalization along the One-Dimensional Arrangement of Bridge-Head Disilanes

Sase Shohei, Cho Yoen-Seok, Kawachi Atsushi, Wakamiya Atsushi, Yamaguchi Shigehiro, Tsuji Hayato, Tamao Kohei

ORGANOMETALLICS 27 巻 ( 21 ) 頁： 5441 - 5445 2008年11月

Red-emissive Polyphenylated BODIPY Derivatives: Effect of Peripheral Phenyl Groups on the Photophysical and Electrochemical Properties

Wakamiya Atsushi, Sugita Naoya, Yamaguchi Shigehiro

CHEMISTRY LETTERS 37 巻 ( 10 ) 頁： 1094 - 1095 2008年10月

Design and synthesis of boron-containing functional pi-electron materials

Atsushi Wakamiya, Shigehiro Yamaguchi

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 66 巻 ( 9 ) 頁： 858 - 868 2008年9月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：SOC SYNTHETIC ORGANIC CHEM JPN

Utilization of boron, a group 13 element, as a key element for developing new functional electronic and optoelectronic materials is an important direction in the organoboron chemistry. Boron has several characteristic features, such as trigonal planar geometry for trivalent boron compounds, high Lewis acidity, and effective orbital interaction with pi-conjugated frameworks through the vacant p-orbital (i.e., p(pi)-pi* conjugation). Exploiting these features of the boron element for molecular designs allows us to create sophisticated pi-electron materials having attractive photophysical and electronic properties. We here present some progress in our chemistry, including B,B',B"-trianthrylborazine (B3N3)-based molecular bundles, boryl-substituted thienylthiazole pi-electron systems with intramolecular B-N coordination, borole- and dibenzoborole-based pi-conjugated compounds, and boryl-substituted emissive organic solids.

DOI： 10.5059/yukigoseikyokaishi.66.858

Web of Science

Scopus

Electronic modulation of fused oliglothiophenes by chemical oxidation

Suzuki Yoshitake, Okamoto Toshihiro, Wakamiya Atsushi, Yamaguchi Shigehiro

ORGANIC LETTERS 10 巻 ( 16 ) 頁： 3393 - 3396 2008年8月

Highly electron-donating 3,3 '-diaryl-1,1 '-bi(isobenzofuran)s synthesized by photochemical exocyclic [2+2+2] cycloaddition

Zhang Hongyu, Wakamiya Atsushi, Yamaguchi Shigehiro

ORGANIC LETTERS 10 巻 ( 16 ) 頁： 3591 - 3594 2008年8月

Synthesis and structural characterization of pentaarylboroles and their dianions

So Chcuk-Wai, Watanabe Daisuke, Wakamiya Atsushi, Yamaguchi Shigehiro

ORGANOMETALLICS 27 巻 ( 14 ) 頁： 3496 - 3501 2008年7月

Bis-phosphoryl-bridged stilbenes synthesized by an intramolecular cascade cyclization

Fukazawa Aiko, Hara Masanao, Okamoto Toshihiro, Son Eun-Cheol, Xu Caihong, Tamao Kohei, Yamaguchi Shigehiro

ORGANIC LETTERS 10 巻 ( 5 ) 頁： 913 - 916 2008年3月

Synthesis and Electronic Spectra of Disilatriptycene Oligomers: Evidence for Electronic Delocalization along the One-Dimensional Arrangement of Bridge-Head Disilanes

S. Sase, Y.-S. Cho, A. Kawachi, A. Wakamiya, S. Yamaguchi, H. Tsuji, and K. Tamao

Organometallics 27 巻頁： 5441-5445 2008年

*Phosphonium and Borate-Bridged Zwitterionic Ladder Stilbene and Its Extended Analogues 査読有り

A. Fukazawa, H. Yamada, and S. Yamaguchi

Angew. Chem. Int. Ed. 47 巻頁： 5582-5585 2008年

Kinetically Stabilized Dibenzoborole as an Electron-Accepting Building Unit

A. Wakamiya, K. Mishima, K. Ekawa, and S. Yamaguchi

Chem. Commun., 頁： 579-581 2008年

Bis-Phosphoryl-Bridged Stilbenes Synthesized by an Intramolecular Cascade Cyclization

A. Fukazawa, M. Hara, T. Okamoto. E.-C. Son, C. Xu, K. Tamao, and S. Yamaguchi

Org. Lett. 10 巻頁： 913-916 2008年

Synthesis and Structural Characterization of Pentaarylboroles and Their Dianions

C.-W. So, D. Watanabe, A. Wakamiya, and S. Yamaguchi

Organometallics 27 巻頁： 3496-3501 2008年

Disilylphenylene and Tetrasilylphenylene as a New Building Unit for Highly Fluorescent Poly(aryleneethynylene)s

A. Iida, K. Nagura, and S. Yamaguchi

Chem. Asian J. 3 巻頁： 1456-1464 2008年

Electronic Modulation of Fused Oligothiophenes by Chemical Oxidation

Y. Suzuki, T. Okamoto, A. Wakamiya, and S. Yamaguchi

Org. Lett. 10 巻頁： 3393-3396 2008年

Highly Electron-Donating 3,3'-Diaryl-1,1'-Bi(isobenzofuran)s Synthesized by Photochemical Exocyclic [2+2+2] Cycloaddition

H. Zhang, A. Wakamiya, and S. Yamaguchi

Org. Lett. 10 巻頁： 3591-3594 2008年

Design and Synthesis of Boron-Containing Functional pi-Electron Materials

A. Wakamiya, and S. Yamaguchi

J.Syn. Org. Chem., Jpn. 66 巻頁： 858-868 2008年

Red-Emissive Polyphenylated BODIPY Derivatives: Effect of Peripheral Phenyl Groups on the Photophysical and Electrochemical Properties

A. Wakamiya, N. Sugita, and S. Yamaguchi

Chem. Lett. 37 巻頁： 1094-1095 2008年

Phosphonium- and borate-bridged zwitterionic ladder stilbene and its extended analogues 査読有り

Fukazawa Aiko, Yamada Hiroshi, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 47 巻 ( 30 ) 頁： 5582 - 5585 2008年

Disilylphenylene and tetrasilylphenylene as new building unit for highly fluorescent poly(aryleneethynylene)s

Iida Azusa, Nagura Kazuhiko, Yamaguchi Shigehiro

CHEMISTRY-AN ASIAN JOURNAL 3 巻 ( 8-9 ) 頁： 1456 - 1464 2008年

2,5-Thienylene-bridged triangular and linear porphyrin trimers 査読有り

J. Song, S.Y. Jang, S. Yamaguchi, J. Sankar, S. Hiroto, N. Aratani, J.-Y. Shin, S. Easwaramoorthi, K.S. Kim, D. Kim, H. Shinokubo, A. Osuka

Angewandte Chemie - International Edition 47 巻 ( 32 ) 頁： 6004 - 6007 2008年

Kinetically stabilized dibenzoborole as an electron-accepting building unit

Wakamiya Atsushi, Mishima Kotaro, Ekawa Kanako, Yamaguchi Shigehiro

CHEMICAL COMMUNICATIONS ( 5 ) 頁： 579 - 581 2008年

Coplanar oligo(p-phenylenedisilenylene)s based on the octaethyl-substituted s-hydrindacenyl groups 査読有り

Fukazawa Aiko, Li Yongming, Yamaguchi Shigehiro, Tsuji Hayato, Tamao Kohei

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 129 巻 ( 46 ) 頁： 14164 - + 2007年11月

Thiophene- and selenophene-based heteroacenes: combined quantum chemical DFT and spectroscopic Raman and UV-Vis-NIR study.

Osuna RM, Ponce Ortiz R, Okamoto T, Suzuki Y, Yamaguchi S, Hernandez V, López Navarrete JT

The journal of physical chemistry. B 111 巻 ( 26 ) 頁： 7488 - 7496 2007年7月

Energy migration in conjugated polymers: the role of molecular structure

Rose Aimee, Tovar John D., Yamaguchi Shigehiro, Nesterov Evgueni E., Zhu Zhengguo, Swager Timothy M.

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 365 巻 ( 1855 ) 頁： 1589 - 1606 2007年6月

Highly emissive poly(aryleneethynylene)s containing 2,5-diboryl-1,4-phenylene as a building unit

Zhao Cui-Hua, Wakamiya Atsushi, Yamaguchi Shigehiro

MACROMOLECULES 40 巻 ( 11 ) 頁： 3898 - 3900 2007年5月

Single-crystal field-effect transistors of benzoannulated fused oligothiophenes and oligoselenophenes

Yamada Koichi, Okamoto Toshihiro, Kudoh Kenichi, Wakamiya Atsushi, Yamaguchi Shigehiro, Takeya J.

APPLIED PHYSICS LETTERS 90 巻 ( 7 ) 頁： 072102 2007年2月

Ladder distyrylbenzenes with silicon and chalcogen bridges: Synthesis, structures, and properties

Mouri Kazuhiro, Wakamiya Atsushi, Yamada Hiroshi, Kajiwara Takashi, Yamaguchi Shigehiro

ORGANIC LETTERS 9 巻 ( 1 ) 頁： 93 - 96 2007年1月

General Synthesis of Extended Fused Oligothiophenes Consisting of Even Number of Thiophene Rings

T. Okamoto, K. Kudoh, A. Wakamiya, and S. Yamaguchi

Chem. Eur. J. 13 巻頁： 548-556 2007年

Thiophene and Selenophene-Based Heteroacenes: Combined Quantum Chemical DFT, and Spectroscopic Raman and UV-Vis-NIR Study

R. M. Osuna, R. P. Ortiz, T. Okamoto, Y. Suzuki, S. Yamaguchi, V. Hernandez, J. Teodomiro, and L. Navarrete

J. Phys. Chem. B 111 巻頁： 7488-7496 2007年

Highly Emissive Poly(aryleneethynylene)s Containing 2,5-Dibroyl-1,4-Phenylene as a Building Unit

C. -H. Zhao, A. Wakamiya, and S. Yamaguchi

Macromolecules 40 巻頁： 3898-3900 2007年

*3-Boryl-2,2'-Bithiophene as a Versatile Core Skeleton for Full-Color Highly Emissive Organic Solids

A. Wakamiya, K. Mori, and S. Yamaguchi

Angew. Chem. Int. Ed. 46 巻頁： 4273-4276 2007年

*Single Crystal Field Effect Transistors of Benzo-Annulated Fused Oligothiophenes and Oligoselenophenes

K. Yamada, T. Okamoto, K. Kudoh, A. Wakamiya, S. Yamaguchi, and J. Takeya

Appl. Phys. Lett. 90 巻頁： 072102 2007年

Crystallographic and Chiroptical Studies on Tetraarylferrocenes for Use as Chiral Rotary Modules for Molecular Machines

T. Muraoka, K. Kinbara, A. Wakamiya, S. Yamaguchi, and T. Aida

Chem. Eur. J. 13 巻頁： 1724-1730 2007年

Ladder Distyrylbenzenes with Silicon and Chalcogen Bridges: Synthesis, Structures, and Properties

K. Mouri, A. Wakamiya, H. Yamada, T. Kajiwara, and S. Yamaguchi

Org. Lett. 9 巻頁： 93-96 2007年

3-Boryl-2,2 '-bithiophene as a versatile core skeleton for full-color highly emissive organic solids

Wakamiya Atsushi, Mori Kenji, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 46 巻 ( 23 ) 頁： 4273 - 4276 2007年

Crystallographic and Chiroptical Studies on Tetraarylferrocenes for Use as Chiral Rotary Modules for Molecular Machines

T. Muraoka, K. Kinbara, A. Wakamiya, S. Yamaguchi, T. Aida

Chem. Eur. J. 13 巻頁： 1724-1730 2007年

General synthesis of extended fused oligothiophenes consisting of an even number of thiophene rings

Okamoto Toshihiro, Kudoh Kenichi, Wakamiya Atsushi, Yamaguchi Shigehiro

CHEMISTRY-A EUROPEAN JOURNAL 13 巻 ( 2 ) 頁： 548 - 556 2007年

Field effect transistors of single crystal benzo-annulated fused oligothiophenes and oligoselenophenes 査読有り

Y. Tominari, K. Yamada, M. Yamagishi, Jun Takeya, T. Okamoto, K. Kudoh, A. Wakamiya, S. Yamaguchi

Materials Research Society Symposium Proceedings 1003 巻頁： 112 - 117 2007年

掲載種別：研究論文（国際会議プロシーディングス）

Recently synthesized benzo-annulated fused oligothiophenes and oligoselenophenes are introduced as air-stable organic semiconductors for high-performance organic field-effect transistors. To evaluate electronic mobility intrinsic to the materials, single-crystal transistors are prepared for two representative compounds of benzo-annulated pentathienoacene f-B5TB and its selenium analogue f-BT3STB. High mobility of more than 1 cm2/Vs is achieved for the selenium compound, due to its considerable Se- - -Se orbital interactions. The transistor performances have been stable for two months, indicating high duration of the compound in the ambient atmosphere. Copyright © 2007 Materials Research Society.

Scopus

Highly emissive organic solids containing 2,5-diboryl-1,4-phenylene unit

Zhao Cui-Hua, Wakamiya Atsushi, Inukai Yuko, Yamaguchi Shigehiro

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 128 巻 ( 50 ) 頁： 15934 - 15935 2006年12月

High fidelity self-sorting assembling of meso-cinchomeronimide appended meso-meso linked Zn(II) diporphyrins.

Kamada T, Aratani N, Ikeda T, Shibata N, Higuchi Y, Wakamiya A, Yamaguchi S, Kim KS, Yoon ZS, Kim D, Osuka A

Journal of the American Chemical Society 128 巻 ( 23 ) 頁： 7670 - 7678 2006年6月

Reactions of fused polycyclic 1,2-dithiins with transition metals: Synthesis of heteroacenes via desulfurization

Kudoh K, Okamoto T, Yamaguchi S

ORGANOMETALLICS 25 巻 ( 9 ) 頁： 2374 - 2377 2006年4月

Ladder pi-conjugated materials with main group elements

Yamaguchi S, Xu CH, Okamoto T

PURE AND APPLIED CHEMISTRY 78 巻 ( 4 ) 頁： 721 - 730 2006年4月

Intramolecular B-N Coordination as a New Scaffold for Design of Electron Transporting Materials: Synthesis and Properties of Boryl-Substituted Thienylthiazoles

A. Wakamiya, T. Taniguchi, and S. Yamaguchi

Angew. Chem. Int. Ed. 45 巻頁： 3170-3173 2006年

Highly Emissive Organic Solids Containing 2,5-Diboryl-1,4-Phenylene Unit

C. -H. Zhao, A. Wakamiya, Y. Inukai, and S. Yamaguchi

J. Am. Chem. Soc. 128 巻頁： 15934-15935 2006年

Highly Fidelity Self-Sorting Assembling of meso-Cinchomeronimide Appended meso-meso Linked Zn(II) Diporphyrins

T. Kamada, N. Aratani, T. Ikeda, N. Shibata, Y. Higuchi, A. Wakamiya, S. Yamaguchi, K. S. Kim, Z. S. Yoon, D. Kim, A. Osuka

J. Am. Chem. Soc. 128 巻頁： 7670-7678 2006年

Reactions of Fused Polycyclic 1,2-Dithiins with Transiton Metals: Synthesis of Heteroacenes via Desulfurization

K. Kudoh, T. Okamoto, and S. Yamaguchi

Organometallics 25 巻頁： 2374-2377 2006年

Boron as a Key Component for New pi Electron Materials

S. Yamaguchi and A. Wakamiya

Pure Appl. Chem. 78 巻頁： 1413-1424 2006年

Ladder pi-Conjugated Materials with Main Group Elements

S. Yamaguchi, C. Xu, and T. Okamoto

Pure Appl. Chem. 78 巻頁： 721-730 2006年

Boron as a Key Component for New pi Electron Materials

S. Yamaguchi, A. Wakamiya

Pure Appl. Chem. 78 巻頁： 1413-1424 2006年

Intramolecular B-N coordination as a scaffold for electron-transporting materials: Synthesis and properties of boryl-substituted thienylthiazoles

Wakamiya Atsushi, Taniguchi Takuhiro, Yamaguchi Shigehiro

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 45 巻 ( 19 ) 頁： 3170 - 3173 2006年

Synthesis and photophysical properties of new π-electron systems containing boryl groups at the side positions 査読有り

A. Wakamiya, C.-H. Zhao, K. Mori, S. Yamaguchi

Polymer Preprints, Japan 55 巻 ( 2 ) 頁： 3023 - 3024 2006年

Synthesis, structures, and photophysical properties of silicon and carbon-bridged ladder oligo(p-phenylenevinylene)s and related pi-electron systems

Yamaguchi S, Xu CH, Yamada H, Wakamiya A

JOURNAL OF ORGANOMETALLIC CHEMISTRY 690 巻 ( 23 ) 頁： 5365 - 5377 2005年11月

General synthesis of thiophene and selenophene-based heteroacenes

Okamoto T, Kudoh K, Wakamiya A, Yamaguchi S

ORGANIC LETTERS 7 巻 ( 23 ) 頁： 5301 - 5304 2005年11月

The chemistry of silicon-containing ladder pi-conjugated systems

Yamaguchi S, Xu CH

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 63 巻 ( 11 ) 頁： 1115 - 1123 2005年11月

The chemistry of silicon-containing ladder pi-conjugated systems

S Yamaguchi, CH Xu

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 63 巻 ( 11 ) 頁： 1115 - 1123 2005年11月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：SOC SYNTHETIC ORGANIC CHEM JPN

The intramolecular reductive cyclization of bis(o-silylphenyl)acetylenes with lithium naphthalenide produces bis-silicon-bridged stilbenes. Based on this new cyclization, a series of silicon-bridged ladder pi-conjugated systems consisting of the p-phenylenevinylene framework have been synthesized, including the partially or fully silicon-bridged bis (styryl) benzenes, extended ladder oligo(p-phenylenevinylene)s, and bis-silicon-bridged stilbene-based pi-conjugated polymers. All the ladder pi-electron systems show intense fluorescence in the visible region. The detailed elucidation of their photophysical properties revealed the significant effect of the silicon moieties on the fluorescence properties.

Web of Science

Toward pi-conjugated molecule bundles: Synthesis of a series of B,B ',B ''-trianthryl-N,N ',N ''-triarylborazines and the bundle effects on their properties

Wakamiya A, Ide T, Yamaguchi S

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 127 巻 ( 42 ) 頁： 14859 - 14866 2005年10月

Solubilization by different-sized surfactant mixtures.

Yamaguchi S

Journal of colloid and interface science 286 巻 ( 1 ) 頁： 355 - 9 2005年6月

Ladder oligo(p-phenylenevinylene)s with silicon and carbon bridges

Xu CH, Wakamiya A, Yamaguchi S

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 127 巻 ( 6 ) 頁： 1638 - 1639 2005年2月

A key role of orbital interaction in the main group element-containing pi-electron systems

Yamaguchi S, Tamao K

CHEMISTRY LETTERS 34 巻 ( 1 ) 頁： 2 - 7 2005年1月

General Synthesis of Thiophene and Selenophene-Based Heteroacenes

T. Okamoto, K. Kudoh, A. Wakamiya, and S. Yamaguchi

Org. Lett. 7 巻頁： 5301-5304 2005年

The Chemistry of Silicon-Containing Ladder p-Conjugated Systems

S. Yamaguchi and C. Xu

63 巻頁： 1115-1123 2005年

Toward pi-Conjugated Molecular Bundles: Synthesis of a Series of B,B',B"-Trianthryl-N,N',N"-triarylborazines and the Bundle Effects on their Properties

A. Wakamiya, T. Ide, and S. Yamaguchi

J. Am. Chem. Soc 127 巻頁： 14859-14866 2005年

Synthesis, Structures, and Photophysical Properties of Silicon and Carbon-Bridged Ladder Oligo(p-phenylenevinylene)s and Related pi-Electron Systems

S. Yamaguchi, C. Xu, H. Yamada, and A. Wakamiya

690 巻頁： 5365-5377 2005年

A Key Role of Orbital Interaction in the Main Group Element-Containing -Electron Systems

S. Yamaguchi and K. Tamao

Chem. Lett. 34 巻頁： 2-7 2005年

Ladder Oligo(p-phenylenevinylene)s with Silicon and Carbon Bridges

C. Xu, A. Wakamiya, and S. Yamaguchi

J. Am. Chem. Soc. 127 巻頁： 1638-1639 2005年

A Key Role of Orbital Interaction in the Main Group Element-Containing -Electron Systems

S. Yamaguchi, K. Tamao

Chem. Lett. 34 巻頁： 2-7 2005年

Ladder bis-silicon-bridged stilbenes as a new building unit for fluorescent pi-conjugated polymers

Xu CH, Yamada H, Wakamiya A, Yamaguchi S, Tamao K

MACROMOLECULES 37 巻 ( 24 ) 頁： 8978 - 8983 2004年11月

General silaindene synthesis based on intramolecular reductive cyclization toward new fluorescent silicon-containing pi-electron materials 査読有り

Xu CH, Wakamiya A, Yamaguchi S

ORGANIC LETTERS 6 巻 ( 21 ) 頁： 3707 - 3710 2004年10月

All-anti-pentasilane: Conformation control of oligosilanes based on the bis(tetramethylene)-tethered trisilane unit 査読有り

Tsuji H, Fukazawa A, Yamaguchi S, Toshimitsu A, Tamao K

ORGANOMETALLICS 23 巻 ( 14 ) 頁： 3375 - 3377 2004年7月

First Br-4 four centre-six electron and Se2Br5 seven centre-ten electron bonds in nonionic bromine adducts of selenanthrene

Nakanishi W, Hayashi S, Yamaguchi S, Tamao K

CHEMICAL COMMUNICATIONS ( 2 ) 頁： 140 - 141 2004年1月

Ladder Bis-Silicon-Bridged Stilbenes as a New Building Unit for Fluorescent pi-Conjugated Polymers

C. Xu, H. Yamada, A. Wakamiya, S. Yamaguchi, and K. Tamao

Macromolecules 37 巻頁： 8978-8983 2004年

Endo-endo mode intramolecular reductive cyclization of cyclic 1,2-bis(silylethynyl)benzenes

Yamaguchi S, Miyasato M, Tamao K

CHEMISTRY LETTERS 32 巻 ( 12 ) 頁： 1104 - 1105 2003年12月

Bis-Silicon-Bridged Stilbene Homologues Synthesized by New Intramolecular Reductive Double Cyclization

S. Yamaguchi, C, Xu, and K. Tamao,

J. Am. Chem. Soc. 125 巻頁： 13662-13663 2003年

The double N-arylation of primary amines: Toward multisubstituted carbazoles with unique optical properties

Nozaki K, Takahashi K, Nakano K, Hiyama T, Tang HZ, Fujiki M, Yamaguchi S, Tamao K

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 42 巻 ( 18 ) 頁： 2051 - 2053 2003年

A colorimetric and ratiometric fluorescent chemosensor with three emission changes: Fluoride ion sensing by a triarylborane-porphyrin conjugate

Kubo Y, Yamamoto M, Ikeda M, Takeuchi M, Shinkai S, Yamaguchi S, Tamao K

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 42 巻 ( 18 ) 頁： 2036 - 2040 2003年

Dibenzoborole-containing pi-electron systems: Remarkable fluorescence change based on the "on/off" control of the p(pi)-pi* conjugation

Yamaguchi S, Shirasaka T, Akiyama S, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 124 巻 ( 30 ) 頁： 8816 - 8817 2002年7月

Cross-coupling reactions in the chemistry of silole-containing pi-conjugated oligomers and polymers

Yamaguchi S, Tamao K

JOURNAL OF ORGANOMETALLIC CHEMISTRY 653 巻 ( 1-2 ) 頁： 223 - 228 2002年7月

Synthesis, structures, and UV-visible absorption spectra of tri(9-anthryl)bismuthine derivatives

Yamaguchi S, Shirasaka T, Tamao K

ORGANOMETALLICS 21 巻 ( 12 ) 頁： 2555 - 2558 2002年6月

A new approach to photophysical properties control of main group element pi-electron compounds based on the coordination number change

Yamaguchi S, Akiyama S, Tamao K

JOURNAL OF ORGANOMETALLIC CHEMISTRY 652 巻 ( 1-2 ) 頁： 3 - 9 2002年6月

The coordination number-photophysical properties relationship of trianthrylphosphorus compounds: doubly locked fluorescence of anthryl groups

Yamaguchi S, Akiyama S, Tamao K

JOURNAL OF ORGANOMETALLIC CHEMISTRY 646 巻 ( 1-2 ) 頁： 277 - 281 2002年3月

Dibenzoborole-Containing -Electron Systems: Remarkable Fluorescence Change Based on the ON/OFF-Control of the p-* Conjugation

S. Yamaguchi, T. Shirasaka, S. Akiyama, and K. Tamao

J. Am. Chem. Soc. 124 巻頁： 8816-8817 2002年

Colorimetric fluoride ion sensing by boron-containing pi-electron systems

Yamaguchi S, Akiyama S, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 123 巻 ( 46 ) 頁： 11372 - 11375 2001年11月

The first alkali metal selenothioates: Synthesis and molecular structure

Niyomura O, Sakai K, Murai T, Kato S, Yamaguchi S, Tamao K

CHEMISTRY LETTERS ( 10 ) 頁： 968 - 969 2001年10月

Structural optimization of 2,5-diarylsiloles as excellent electron-transporting materials for organic electroluminescent devices

Uchida M, Izumizawa T, Nakano T, Yamaguchi S, Tamao K, Furukawa K

CHEMISTRY OF MATERIALS 13 巻 ( 8 ) 頁： 2680 - 2683 2001年8月

Diphenylamino-substituted 2,5-diarylsiloles for single-layer organic electroluminescent devices

Yamaguchi S, Endo T, Uchida M, Izumizawa T, Furukawa K, Tamao K

CHEMISTRY LETTERS ( 2 ) 頁： 98 - 99 2001年2月

Tridurylboranes extended by three arylethynyl groups as a new family of boron-based pi-electron systems

Yamaguchi S, Shirasaka T, Tamao K

ORGANIC LETTERS 2 巻 ( 26 ) 頁： 4129 - 4132 2000年12月

Introduction to the chemistry of interelement linkage

Tamao K, Yamaguchi S

JOURNAL OF ORGANOMETALLIC CHEMISTRY 611 巻 ( 1-2 ) 頁： 3 - 4 2000年10月

New type of polysilanes: poly(1,1-silole)s

Tamao K, Yamaguchi S

JOURNAL OF ORGANOMETALLIC CHEMISTRY 611 巻 ( 1-2 ) 頁： 5 - 11 2000年10月

Photophysical properties changes caused by hypercoordination of organosilicon compounds: From trianthrylfluorosilane to trianthryldifluorosilicate

Yamaguchi S, Akiyama S, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 122 巻 ( 28 ) 頁： 6793 - 6794 2000年7月

Tri-9-anthrylborane and its derivatives: New boron-containing pi-electron systems with divergently extended pi-conjugation through boron

Yamaguchi S, Akiyama S, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 122 巻 ( 26 ) 頁： 6335 - 6336 2000年7月

Toward new materials for organic electroluminescent devices: Synthesis, structures, and properties of a series of 2,5-diaryl-3,4-diphenylsiloles

Yamaguchi S, Endo T, Uchida M, Izumizawa T, Furukawa K, Tamao K

CHEMISTRY-A EUROPEAN JOURNAL 6 巻 ( 9 ) 頁： 1683 - 1692 2000年5月

Silole-thiophene alternating copolymers with narrow band gaps

Yamaguchi S, Goto T, Tamao K

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 39 巻 ( 9 ) 頁： 1695 - + 2000年

Conformation control of oligosilanes based on configurationally constrained bicyclic disilane units

Tamao K, Tsuji H, Terada M, Asahara M, Yamaguchi S, Toshimitsu A

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 39 巻 ( 18 ) 頁： 3287 - + 2000年

The first synthesis of well-defined poly(2,5-silole)

Yamaguchi S, Jin RZ, Itami Y, Goto T, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 121 巻 ( 44 ) 頁： 10420 - 10421 1999年11月

Effect of countercation inclusion by [2.2.2]cryptand upon stabilization of potassium organofluorosilicates

Yamaguchi S, Akiyama S, Tamao K

ORGANOMETALLICS 18 巻 ( 15 ) 頁： 2851 - 2854 1999年7月

A new chiral molecular square with D-4 symmetry composed of enantiomerically pure spirosilane

Yamaguchi S, Ishii H, Tamao K

CHEMISTRY LETTERS ( 5 ) 頁： 399 - 400 1999年5月

Silole polymer and cyclic hexamer catenating through the ring silicons

Yamaguchi S, Jin RZ, Tamao K

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 121 巻 ( 12 ) 頁： 2937 - 2938 1999年3月

A convenient one-pot synthesis of 1,4-dihalobutadienes from alkynes via titanacyclopentadienes and their transformation to a series of silole derivatives

Yamaguchi S, Jin RZ, Tamao K, Sato F

JOURNAL OF ORGANIC CHEMISTRY 63 巻 ( 26 ) 頁： 10060 - 10062 1998年12月

From tellurophenes to siloles. Synthesis, structures, and photophysical properties of 3,4-unsubstituted 2,5-diarylsiloles

Katkevics M, Yamaguchi S, Toshimitsu A, Tamao K

ORGANOMETALLICS 17 巻 ( 26 ) 頁： 5796 - 5800 1998年12月

Silole-containing sigma- and pi-conjugated compounds

Yamaguchi S, Tamao K

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS ( 22 ) 頁： 3693 - 3702 1998年11月

Halodesilylation route to 2,5-difunctionalized 3,4-dialkylsiloles and their derivatization to 2,2 '-bisilole

Yamaguchi S, Jin RZ, Ohno S, Tamao K

ORGANOMETALLICS 17 巻 ( 23 ) 頁： 5133 - 5138 1998年11月

Group 14 metalloles with thienyl groups on 2,5-positions: Effects of group 14 elements on their pi-electronic structures

Yamaguchi S, Itami Y, Tamao K

ORGANOMETALLICS 17 巻 ( 22 ) 頁： 4910 - 4916 1998年10月

Synthesis, structures, photophysical properties, and dynamic stereochemistry of tri-9-anthrylsilane derivatives

Yamaguchi S, Akiyama S, Tamao K

ORGANOMETALLICS 17 巻 ( 20 ) 頁： 4347 - 4352 1998年9月

Synthesis and properties of silole-containing alpha- and pi-conjugated compounds

Yamaguchi S, Tamao K

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN 56 巻 ( 6 ) 頁： 500 - 510 1998年6月

Modification of the electronic structure of silole by the substituents on the ring silicon

Yamaguchi S, Jin RZ, Tamao K

JOURNAL OF ORGANOMETALLIC CHEMISTRY 559 巻 ( 1-2 ) 頁： 73 - 80 1998年5月

Silole-acetylene pi-electronic systems with low bandgaps: Synthesis, structure, and UV-vis absorption spectra of 2,5-diethynylsiloles derivatives and their polymers

Yamaguchi S, Iimura K, Tamao K

CHEMISTRY LETTERS ( 1 ) 頁： 89 - 90 1998年

Pd(II)-catalyzed oxidative homo-coupling of aryl-metal compounds using acrylate dibromide derivatives as effective oxidants

Yamaguchi S, Ohno S, Tamao K

SYNLETT ( 10 ) 頁： 1199 - & 1997年10月

Silicon-catenated silole oligomers: Oligo(1,1-silole)s

Yamaguchi S, Jin RZ, Tamao K, Shiro M

ORGANOMETALLICS 16 巻 ( 12 ) 頁： 2486 - 2488 1997年6月

Synthesis of a series of 1,1-difunctionalized siloles

Yamaguchi S, Jin RZ, Tamao K, Shiro M

ORGANOMETALLICS 16 巻 ( 11 ) 頁： 2230 - 2232 1997年5月

Regioselective synthesis of polyfunctionalized alkyltrisilanes and -tetrasilanes via reductive cross-coupling reaction of aminoalkylsilyl chlorides with lithium

Tamao K, Sun GR, Kawachi A, Yamaguchi S

ORGANOMETALLICS 16 巻 ( 4 ) 頁： 780 - 788 1997年2月

A new example of linear disiloxane: Synthesis and X-ray crystal structure of bis(2-silolyl)tetramethyldisiloxane

Yamaguchi S, Jin RZ, Shiro M, Tamao K

KHIMIYA GETEROTSIKLICHESKIKH SOEDINENII ( 2 ) 頁： 180 - 185 1997年2月

Axially chiral spirosilanes via catalytic asymmetric intramolecular hydrosilation

Tamao K, Nakamura K, Ishii H, Yamaguchi S, Shiro M

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 118 巻 ( 49 ) 頁： 12469 - 12470 1996年12月

Silole derivatives as efficient electron transporting materials

Tamao K, Uchida M, Izumizawa T, Furukawa K, Yamaguchi S

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 118 巻 ( 47 ) 頁： 11974 - 11975 1996年11月

Silole-pyrrole co-oligomers: Their synthesis, structure and UV-VIS absorption spectral

Tamao K, Ohno S, Yamaguchi S

CHEMICAL COMMUNICATIONS ( 16 ) 頁： 1873 - 1874 1996年8月

Theoretical study of the electronic structure of 2,2'-bisilole in comparison with 1,1'-Bi-1,3-cyclopentadiene: sigma*-pi* conjugation and a low-lying LUMO as the origin of the unusual optical properties of 3,3',4,4'-tetraphenyl-2,2'-bisilole

Yamaguchi S, Tamao K

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 69 巻 ( 8 ) 頁： 2327 - 2334 1996年8月

Synthesis, structure, and absorption spectra of the well-defined 1,1'-bicyclopentadiene derivatives

Yamaguchi S, Tamao K

TETRAHEDRON LETTERS 37 巻 ( 17 ) 頁： 2983 - 2986 1996年4月

Regio-controlled intramolecular reductive cyclization of diynes

Tamao K, Yamaguchi S

PURE AND APPLIED CHEMISTRY 68 巻 ( 1 ) 頁： 139 - 144 1996年1月

New chiral diphosphines, 2,3-bis(siloxy)-1,4-bis(diphenylphosphino)butanes, and their cationic Rh(I) complexes: Synthesis and structures

Tamao K, Nakamura K, Yamaguchi S, Shiro M, Saito S

CHEMISTRY LETTERS ( 11 ) 頁： 1007 - 1008 1996年

SILOLE-CONTAINING PI-CONJUGATED SYSTEMS .3. A SERIES OF SILOLE-THIOPHENE COOLIGOMERS AND COPOLYMERS - SYNTHESIS, PROPERTIES, AND ELECTRONIC-STRUCTURES

TAMAO K, YAMAGUCHI S, ITO Y, MATSUZAKI Y, YAMABE T, FUKUSHIMA M, MORI S

MACROMOLECULES 28 巻 ( 25 ) 頁： 8668 - 8675 1995年12月

OLIGOSILOLES - FIRST SYNTHESIS BASED ON A NOVEL ENDO-ENDO MODE INTRAMOLECULAR REDUCTIVE CYCLIZATION OF DIETHYNYLSILANES

TAMAO K, YAMAGUCHI S, SHIRO M

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 116 巻 ( 26 ) 頁： 11715 - 11722 1994年12月

SYNTHESIS AND PROPERTIES OF THIOPHENE CYCLOPENTADIENONE COOLIGOMERS

TAMAO K, YAMAGUCHI S, ITO Y

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS ( 2 ) 頁： 229 - 230 1994年1月

THIOPHENE SILOLE COOLIGOMERS AND COPOLYMERS

TAMAO K, YAMAGUCHI S, SHIOZAKI M, NAKAGAWA Y, ITO Y

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 114 巻 ( 14 ) 頁： 5867 - 5869 1992年7月

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