Photochemical behavior of 2-[2-(2-pyridyl) ethenyl] indole on triplet sensitization. Spin multiplicity dependence of the isomerization modes of an intramolecularly hydrogen-bonded compound

被引：18

作者：

Arai, T ^{[1
]}

Obi, M ^{[1
]}

Iwasaki, T ^{[1
]}

Tokumaru, K ^{[1
]}

Lewis, FD ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1996年 / 96卷 / 1-3期

关键词：

isomerization; intramolecular hydrogen bond; T-T absorption;

D O I：

10.1016/1010-6030(95)04275-X

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：

Although 2-[2-(2-pyridyl)ethenyl]indole undergoes one-way E --> Z isomerization in the excited singlet state, it isomerizes between the E and Z isomers in the excited triplet state. On the basis of the determination of the quantum yields of isomerization and the photostationary state isomer ratios, as well as transient spectroscopic measurements, the potential energy surfaces for E-Z isomerization in the triplet state have been proposed. Specific rotamers of the E and Z isomers are found to be responsible for the triplet state isomerization reactions.

引用

页码：65 / 69

页数：5

共 26 条

[1] MECHANISM FOR PHOTOISOMERIZATION OF 1-STYRYLPYRENE - FINDING OF A NOVEL TYPE OF TRIPLET ENERGY SURFACE WITH 2 DECAY FUNNELS [J].