Geometry changes of a Cu(I) phenanthroline complex on photoexcitation in a confining medium by time-resolved x-ray diffraction

被引：64

作者：

Coppens, P ^{[1
]}

Vorontsov, II

Graber, T

Kovalevsky, AY

Chen, YS

Wu, G

Gembicky, M

Novozhilova, IV

机构：

[1] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA

[2] Univ Chicago, Chicago, IL 60637 USA

[3] Univ Toledo, Toledo, OH 43606 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 19期

关键词：

D O I：

10.1021/ja049781k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using a stroboscopic technique, in which the molecule is repeatedly excited and the structural change is probed more than 5000 times per second immediately after excitation, we performed a 16 K time-resolved single-crystal study of the microsecond lifetime triplet state of the Cu(I)phenanthroline derivative[Cu(I)(dmp)(dppe)][PF6] (dppe = 1,2-bis(diphenylphosphino)ethane). The geometry changes on excitation differ for the two symmetry-independent molecules, but are in the same direction as calculated for an isolated reference molecule, although the flattening distortion in the crystal is significantly smaller, implying that the reorganization energy is greatly affected by the confining medium. Copyright © 2003 American Chemical Society.

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页码：5980 / 5981

页数：2

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