A MECHANISTIC STUDY OF THE ELECTROCHEMICAL OXIDATION OF 2,5-BIS(2-THIENYL)PYRROLES

被引：64

作者：

NIZIURSKIMANN, RE ^{[1
]}

SCORDILISKELLEY, C ^{[1
]}

LIU, TL ^{[1
]}

CAVA, MP ^{[1
]}

CARLIN, RT ^{[1
]}

机构：

[1] UNIV ALABAMA,DEPT CHEM,BOX 870336,TUSCALOOSA,AL 35487

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1993年 / 115卷 / 03期

关键词：

D O I：

10.1021/ja00056a011

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of 2,5-bis(2-thienyl)pyrroles has been synthesized in which the alpha-thiophene protons and/or the beta-pyrrole protons have been replaced by Me or Br substituents. A systematic electrochemical investigation of these compounds has yielded rate constants of 36 000 M-1 s-1 for linear coupling of the electrochemically generated cation radicals and 14 000-17 000 M-1 s-1 for branched coupling reactions of the cation radicals. These results constitute the first kinetic evidence for appreciable branched coupling of the electrochemical radical cations of an oligomer precursor of a conducting polymer.

引用

页码：887 / 891

页数：5

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