SPECTROSCOPIC STUDY OF THE PICOSECOND PHOTOISOMERIZATION OF STILBENE

被引：128

作者：

GREENE, BI ^{[1
]}

HOCHSTRASSER, RM ^{[1
]}

WEISMAN, RB ^{[1
]}

机构：

[1] UNIV PENN,RES STRUCT MATTER LAB,PHILADELPHIA,PA 19104

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 62卷 / 03期

基金：

俄罗斯科学基金会; 美国国家科学基金会;

关键词：

D O I：

10.1016/0009-2614(79)80734-4

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：

New aspects of the photoisomerization dynamics of ethylenic double bonded systems are elucidated via picosecond time-resolved experiments on trans- and cis-stilbene in room temperature hexane solution.For trans, but not cis, a transient spectrum peaked at 585 nm was generated immediately after excitation by a 265 nm pulse. The spectrum narrowed over the first 25 ps and its integral decayed exponentially, τ = 90± 5 ps. The former decay is interpreted as relaxation of the optically generated vibrational energy excess; the latter as the decay time of trans (1B) into twisted forms. © 1979.

引用

页码：427 / 430

页数：4