OPTICAL AND ELECTROCHEMICAL PROPERTIES OF CIS-1,2-DICYANO-1,2-BIS (2,4,5-TRIMETHYL-3-THIENYL)ETHENE

被引：64

作者：

KOSHIDO, T ^{[1
]}

KAWAI, T ^{[1
]}

YOSHINO, K ^{[1
]}

机构：

[1] OSAKA UNIV,FAC ENGN,SUITA,OSAKA 565,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 16期

关键词：

D O I：

10.1021/j100016a055

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：

Optical and electrochemical properties of cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethene (CMTE) have been studied by absorption spectroscopy, cyclic voltammetry, fast sweep voltammetry, and in-situ electrochemical absorptiometry. HOMO and LUMO levels of the CMTE are evaluated from absorption spectra and voltammetry. The lifetimes of unstable cation radicals formed by the electrochemical oxidation of CMTE in closed and open forms are evaluated by the fast sweep voltammetry. Electrochemical isomerization of closed form CMTE is studied by in-situ electrochemical absorptiometry, and the current efficiency is observed to be higher than 600%. The isomerization mechanism and kinetics have been studied taking chain electron transfer reaction between the cation radical of the open form CMTE and the neutral closed farm CMTE into consideration.

引用

页码：6110 / 6114

页数：5

共 20 条

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[2]

BROWN GH, 1971, PHOTOCHROMISM, pCH3

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