Δ4,4′-dicyclopenta[2,1-b:3,4-b′]dithiophene.: A conjugated bridging unit for low band gap conducting polymers

被引：21

作者：

Loganathan, K ^{[1
]}

Cammisa, EG ^{[1
]}

Myron, BD ^{[1
]}

Pickup, PG ^{[1
]}

机构：

[1] Mem Univ Newfoundland, Dept Chem, St Johns, NF A1B 3X7, Canada

来源：

CHEMISTRY OF MATERIALS | 2003年 / 15卷 / 09期

关键词：

D O I：

10.1021/cm0218110

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Delta(4,4 ')-Dicyclopenta[2,1-b:3,4-b'ldithiophene has been prepared from cyclopenta[2,1-b:3,4blbithiophen-4-one and its electrochemical and spectroscopic properties have been characterized. Its low HOMO-LUMO gap and facile electrochemical polymerization make it an attractive building block for low band gap conducting polymers. Films of poly-(Delta(4,4')- dicyclopenta[2,1-b:3,4-b']dithiophene) on electrodes have been characterized by cyclic voltammetry, electronic absorption spectroscopy, IR spectroscopy, and in situ conductivity measurements. The spectroscopic and electrochemical results confirm the formation of a polymeric material with long conjugation length and low band gap (ca. 0.5 eV). The intrinsic conductivity is consistent with this band gap.

引用

页码：1918 / 1923

页数：6

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