PHOTOSOLVOLYSIS OF ARYLMETHANOLS IN AQUEOUS SULFURIC-ACID-SOLUTION

被引：8
|
作者：
HALL, B [1 ]
WAN, P [1 ]
机构：
[1] UNIV VICTORIA,DEPT CHEM,VICTORIA V8W 2Y2,BC,CANADA
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1991年 / 56卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
D O I：
10.1016/1010-6030(91)80004-2
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：
The photosolvolysis of a number of readily available arylmethanols (with the aryl group restricted to unsubstituted phenyl, naphthyl, pyrenyl and phenanthryl) was studied in aqueous sulphuric acid solution in the presence of methanol, ethanol and 2-propanol as external nucleophiles. All the simple arylmethanols studied in this work photosolvolyse only in the presence of acid; they are photostable in neutral solution. Fluorescence quenching by added acid and acid catalysis of the reaction indicate that it proceeds from S1. The results provide information on the relative electron-donating powers of these aryl groups in the excited singlet state.
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页码：35 / 42
页数：8
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