EFFECTS OF SALT ON ISOMERIZATION OF STILBENE CATION RADICALS - DIRECT OBSERVATION OF THEIR CIS-]TRANS CONVERSION

被引：18

作者：

KURIYAMA, Y ^{[1
]}

ARAI, T ^{[1
]}

SAKURAGI, H ^{[1
]}

TOKUMARU, K ^{[1
]}

机构：

[1] UNIV TSUKUBA, DEPT CHEM, TSUKUBA, IBARAKI 305, JAPAN

来源：

CHEMISTRY LETTERS | 1992年 / 05期

关键词：

D O I：

10.1246/cl.1992.879

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Unimolecular cis --> trans conversion of stilbene cation radicals generated from 9,10-dicyanoanthracene-biphenyl co-sensitization under air was directly observed in the presence of salt such as LiClO4 in acetonitrile, and the activation parameters of this process were determined by means of transient spectroscopy. It is proposed that the salt reduces the rate of charge recombination between the olefin cation radical and the resulting superoxide anion by complexing with the latter anion.

引用

页码：879 / 882

页数：4

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