THROUGH-BOND CHARGE-TRANSFER INTERACTION AND PHOTOINDUCED CHARGE SEPARATION

被引：78

作者：

VERHOEVEN, JW

机构：

[1] Univ of Amsterdam, Amsterdam, Neth, Univ of Amsterdam, Amsterdam, Neth

来源：

PURE AND APPLIED CHEMISTRY | 1986年 / 58卷 / 09期

关键词：

ELECTROCHEMISTRY - ORGANIC COMPOUNDS - Chemical Reactions;

D O I：

10.1351/pac198658091285

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of bichromophoric molecules was studied containing a 1,4-dimethoxynaphthalene donor (D) chromophore and a 1,1-dicyanoethylene acceptor (A) chromophore, interconnected by five different, rigid, saturated hydrocarbon bridges. The length of the bridges varies with increments of two sigma bonds from 4 to 12 to provide donor-acceptor separations up to 15 A. In all cases excitation of D is followed by rapid intramolecular electron transfer from D to A. Through-bond interaction involving sigma / pi interaction between the bridges and the chromophores is proposed to explain the very high rates of electron transfer. The observation of intramolecular charge transfer absorption and emission confirms the operation of such through-bond interaction.

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页码：1285 / 1290

页数：6

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