σ-"Dimers" -: key intermediates and products during generation and redox switching of conjugated oligomers and polymers

被引：63

作者：

Heinze, J ^{[1
]}

John, H ^{[1
]}

Dietrich, M ^{[1
]}

Tschuncky, P ^{[1
]}

机构：

[1] Univ Freiburg, Inst Phys Chem, D-79104 Freiburg, Germany

来源：

SYNTHETIC METALS | 2001年 / 119卷 / 1-3期

关键词：

electrochemical polymerization; electrochemical doping; electrochemical methods; polythiophene and derivatives;

D O I：

10.1016/S0379-6779(00)00676-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Voltammetric measurements of conjugated monodisperse thiophenes reveal that the intermediate sigma -dimers, which are formed during electropolymerization, are quite stable. The rate of proton elimination depends on the basicity of the system and slows down with increasing chain length of the oligomers. In the case of endcapped thiophenes, electrochemical data also give evidence of the formation of sigma -dimers.

引用

页码：49 / 52

页数：4

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