Poly(1,10-phenanthroline-3,8-diyl) and its derivatives. Preparation, optical and electrochemical properties, solid structure, and their metal complexes

Takakazu Yamamoto, Yutaka Saitoh, Kazushige Anzai, Hiroki Fukumoto, Takuma Yasuda, Yoshiki Fujiwara, Byoung Ki Choi, Kenji Kubota, Takayuki Miyamae

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π-Conjugated poly(1,10-phenanthroline-3,8-diyl), PPhen, and its 5,6-dialkoxy derivatives. PPhen(5,6-OR)s, have been synthesized by using an organometallic polycondensation with a zerovalent nickel complex. They have average molecular weights of 4300-6800. PPhen had a stiff structure, as revealed by a light scattering method, and exhibited a strong dichroism in UV-vis absorption and photoluminescence. PPhen(5,6-OR)s formed an end-to-end packing assembly assisted by the side chain crystallization of the OR groups. PPhen and PPhen(5,6-OR)s were susceptible to chemical and electrochemical reduction, and the reduced state showed certain stability toward oxygen in air. The π-conjugated polymers underwent quantitative complex formation with [Ru(bpy)2]2+. Introduction of two more imine nitrogens in the repeating unit of PPhen enhanced much the electron accepting property of PPhen, and n-doping of the obtained polymer took place at Epc of -1.38 V vs Ag+/Ag.

元の言語英語
ページ(範囲)6722-6729
ページ数8
ジャーナルMacromolecules
36
発行部数18
DOI
出版物ステータス出版済み - 9 9 2003
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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