LASER PHOTOLYSIS STUDY OF CHLORANIL TRIPLET EXCIPLEXES WITH STILBENE

被引：1

作者：

LEVIN, PP

KUZMIN, VA

机构：

来源：

BULLETIN OF THE RUSSIAN ACADEMY OF SCIENCES-DIVISION OF CHEMICAL SCIENCE | 1992年 / 41卷 / 03期

关键词：

TRIPLET; CHLORANIL; PHOTOCHEMISTRY; ELECTRON PHOTOTRANSFER; EXCIPLEX;

D O I：

10.1007/BF00863061

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Absorption spectra and decay kinetics of the polar triplet exciplexes (contact radical-ion pairs) formed during quenching of the chloranil triplet state by trans- or cis-stilbenes in benzene with added acetonitrile and methanol, have been studied by laser flash photolysis. The exciplexes include cation-radicals of stilbene dimers, which are deactivated by reverse electron transfer within 10-50 nsec. The dynamics of the intercombination electron transfer and the exciplex dissociation into ion-radicals were determined. The isomerization of stilbene via triplet exciplex formation was not observed.

引用

页码：451 / 453

页数：3

共 13 条

[1] PHOTOADDITION AND PHOTOREDUCTION OF CHLORANIL WITH ARENES VIA SINGLET AND TRIPLET EXCITED COMPLEXES - EFFECTS OF IRRADIATION WAVELENGTH AND RADICAL ION-PAIR SPIN MULTIPLICITY [J].