Effect of silver ions on the photochemical properties of N-methyldiphenylamine

被引：3

作者：

Budyka, M.F. ^{[1
]}

Laukhina, O.D. ^{[1
]}

Gavrishova, T.N. ^{[1
]}

机构：

[1] Inst. of Prob. of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, Russia

来源：

Journal of Photochemistry and Photobiology A: Chemistry | 2000年 / 134卷 / 03期

关键词：

Acceleration - Cyclization - Metal ions - Quenching - Rate constants - Silver compounds;

D O I：

10.1016/S1010-6030(00)00253-7

中图分类号：

学科分类号：

摘要：

Silver(I) ions have been found to quench the fluorescence of N-methyldiphenylamine (1) and reduce the quantum yield of cyclization reaction of 1 to N-methylcarbazole (3). Comparison of relative quenching rate constants for the singlet- and triplet-excited states of 1 has enabled the evaluation of two components, physical and chemical, in silver(I) action on the triplet-excited 1 (31), namely: acceleration of the intersystem crossing processes 31 → 1 and inhibition of the reaction of 31 photocyclization to the triplet-excited N-methyldihydrocarbazole (2). © 2000 Published by Elsevier Science S.A. All rights reserved.

引用

页码：143 / 146