論文 - 荘司　長三

Single Molecule Visualization of Coordination Assembled Porphyrin Macrocycles Reinforced with Covalent Linkings 査読有り

Osami Shoji, Hiroyuki Tanaka, Tomoji Kawai, Yoshiaki Kobuke

J. Am. Chem. Soc   127 巻 ( 24 ) 頁： 8598 -8599   2005年5月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

Coordination Assembled Rings of Ferrocene-Bridged Trisporphyrin with Flexible Hinge-like Motion: Selective Dimer Ring Formation, its Transformation to Larger Rings, and Vice Versa 査読有り

Osami Shoji, Saori Okada, Akiharu Satake, Yoshiaki Kobuke

J. Am. Chem. Soc   127 巻 ( 7 ) 頁： 2201-2210   2005年2月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

Temperature Dependence of Circular Dichroism and Fluorescence Decay of Pyrene Appended to the Side Chains of Poly-L-glutamine 査読有り

Osami Shoji, Daisuke Nakajima, Masahiro Ohkawa, Yoshiki Fujiwara, Masahiko Annaka, Masako Yoshikuni, and Takayuki Nakahira

Macromolecules   36 巻 ( 12 ) 頁： 4557-4566   2003年5月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

Side-chain Chromophore Orientation and Excitation Energy Transport in Films Prepared from Poly[N5-(R)- and N5-(S)-1-(1-naphthyl)ethyl-L-glutamines] 査読有り

Osami Shoji, Yachiyo Higashi, Sachie Hishinuma, Masaki Sato, Masahiko Annaka, Masako Yoshikuni, and Takayuki Nakahira

Macromolecules   35 巻 ( 6 ) 頁： 2116-2121   2002年2月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

Highly controlled side-chain chromophore orientation in poly[N5-1-(1-pyrenyl)ethyl--glutamines] 査読有り

Osami Shoji, Daisuke Nakajima, Masahiko Annaka, Masako Yoshikuni, Takayuki Nakahira

Polymer   43 巻 ( 5 ) 頁： 1711-1714   2001年11月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）  

Poly[N5-(R and S)-1-(1-pyrenyl)ethyl-Image -glutamines] (1 and 2) were prepared by condensation of poly(Image -glutamic acid) with optically resolved amines. In solution, these polymers, 2 in particular, gave large circular dichroism (CD) indicative of exciton coupling among the side-chain pyrene chromophores. When compared with the corresponding polymer with achiral side groups, i.e. poly(1-pyrenylmethyl-Image -glutamine) (3), 1 and 2 not only gave much stronger CD, but also gave much reduced excimer emission with a significant hypsochromic shift of emission maximum. The highly controlled orientation of the side-chain chromophores is apparently brought about by the specific steric interactions among the bulky chiral side chains along the helical main chain.

Secondary Structure and Side-Chain Chromophore Orientation in Poly(L-glutamines) Having Pyrene Chromophores in the Side Chains 査読有り

Osami Shoji, Masataka Okumura, Hiromi Kuwata, Takuma Sumida, Ryo Kato, Masahiko Annaka, Masako Yoshikuni, and Takayuki Nakahira

Macromolecules   34 巻 ( 12 ) 頁： 4270-4276   2001年5月

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担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）