Synthesis and optical properties of 1,1-binaphthyl-thiophene alternating copolymers with main chain chirality

Kohsuke Kawabata, Hiromasa Goto

研究成果: Article査読

16 被引用数 (Scopus)

抄録

A series of axially chiral 1,1-binaphthyl-thiophene copolymers were synthesized by Migita-Kosugi-Stille polycondensation and electrochemical polymerization. The polymers exhibit circular dichroism not only in the ultraviolet region but also in the visible region, both in solution and film states. Optical and electrochemical properties of the polymers are in good agreement with theoretical results obtained by density functional theory calculations. Although effective conjugation of the polymers was cleaved at the orthogonally oriented two naphthalene rings in the 1,1-binaphthyl unit, the electrochemically synthesized polymer film shows good electrochemical redox behavior with repeatable changes in optical absorption and circular dichroism. The changes in circular dichroism may reflect a change in the dihedral angle of the binaphthyl unit caused by reorientation of conjugated main chains between oxidized and neutral states.

本文言語English
ページ(範囲)23514-23524
ページ数11
ジャーナルJournal of Materials Chemistry
22
44
DOI
出版ステータスPublished - 2012 11 28
外部発表はい

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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