Subpicosecond dynamics in the excited state absorption of all-trans-β-Carotene

被引：105

作者：

de Weerd, FL ^{[1
]}

van Stokkum, IHM ^{[1
]}

van Grondelle, R ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, Fac Sci, Div Phy & Astron, Dept Biophys & Phys Complex Syst, NL-1081 HV Amsterdam, Netherlands

来源：

CHEMICAL PHYSICS LETTERS | 2002年 / 354卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(02)00095-7

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：

We have investigated the time evolution of the transient absorption spectrum of all-trans-beta-carotene in a number of solvents. In all cases we observe a loss of red and a gain of blue S-1 (2A(g)(-)) --> SN excited state absorption on a 0.3-0.4 ps time scale. To explain these observations, a model is proposed in which distorted molecules formed in S-2 (1B(u)(+)) relax back to the all-traps state in S-1 (2A(g)(-)). (C) 2002 Published by Elsevier Science B.V.

引用

页码：38 / 43

页数：6

共 26 条

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