ISOMERIZATION OF CIS-STILBENE IN RARE-GAS CLUSTERS - DIRECT MEASUREMENTS OF TRANS-STILBENE FORMATION RATES ON A PICOSECOND TIME SCALE

被引：32
|
作者：
PETEK, H
YOSHIHARA, K
FUJIWARA, Y
FREY, JG
机构：
[1] KANAZAWA UNIV,FAC PHARMACEUT SCI,KANAZAWA,ISHIKAWA 920,JAPAN
[2] UNIV SOUTHAMPTON,DEPT CHEM,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND
来源：
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1990年 / 7卷 / 08期
关键词：
D O I：
10.1364/JOSAB.7.001540
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Photochemical isomerization of cis-stilbene in Ar and Kr clusters is studied by selectively measuring the transstilbene product formation rate with less than 1-psec time resolution. The observed trans-stilbene rise times are biexponential: The fast component is 1.7 ± 0.4 psec in Ar and 3.0 ± 0.3 psec in Kr, and the slow component is 16 ± 1 psec independently of the rare-gas solvent. It is proposed that the biexponential rise time is due to different decay rates for the vibrationally hot and relaxed phantom intermediate state. © 1990 Optical Society of America.
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页码：1540 / 1544
页数：5
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