Chemical control of Hemithioindigo-photoisomerization -: Substituent-effects on different molecular parts

被引：50

作者：

Cordes, Thorben ^{[1
,2
]}

Schadendorf, Torsten ^{[3
]}

Rueck-Braun, Karola ^{[3
]}

Zinth, Wolfgang ^{[1
,2
]}

机构：

[1] Univ Munich, Lehrstuhl BioMol Opt, Dept Phys, D-80538 Munich, Germany

[2] Univ Munich, Munich Ctr Integrated Prot Sci CIPSM, D-80538 Munich, Germany

[3] Tech Univ Berlin, Inst Chem, D-10632 Berlin, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2008年 / 455卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2008.02.096

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：

Hemithioindigo-molecules show a photochromic behavior due to a photo-induced Z/E-isomerization on a picosecond timescale. Changes in the reaction kinetics, caused by polar substituents attached to the thioindigo-moiety, are studied using time-resolved absorption spectroscopy. The experiments reveal that substituents in the thioindigo-part influence the reaction dynamics in a different manner as previously found for stilbene-substitution. The results are discussed in the context of inductive- and resonance-effects and lead to an improved understanding of the molecular mechanisms of the Hemithioindigo-photoreaction. (C) 2008 Published by Elsevier B.V.

引用

页码：197 / 201

页数：5

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