Dark excited states of carotenoids: Consensus and controversy

被引：231

作者：

Polivka, Tomas ^{[1
,2
]}

Sundstrom, Villy

机构：

[1] Univ S Bohemia, Inst Phys Biol, Femtosecond Spect Grp, CZ-37333 Nove Hrady, Czech Republic

[2] Lund Univ, Dept Chem Phys, Grp Villy Sundstrom, S-22100 Lund, Sweden

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 477卷 / 1-3期

关键词：

ALL-TRANS-NEUROSPORENE; ULTRAFAST INTERNAL-CONVERSION; LIGHT-HARVESTING COMPLEX; ENERGY-GAP LAW; BETA-CAROTENE; VIBRATIONAL-RELAXATION; S-1; STATE; SPECTROSCOPIC PROPERTIES; ABSORPTION-SPECTROSCOPY; TRIPLET CONVERSION;

D O I：

10.1016/j.cplett.2009.06.011

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：

Excited-state dynamics of carotenoids has attracted considerable recent interest, but it has also engendered a number of controversial hypotheses. This review summarizes the knowledge gathered from various ultrafast time-resolved techniques addressing the two most discussed dark excited states (1B(u)(-) and S*). These two states have been subjects of numerous earlier studies, because while the 1B(u)(-) state was predicted by theory a long time ago but never clearly observed in experiment, the S* state is readily observed in transient absorption data, but no theoretical explanation of its origin has been available until recently. The major focus of this review is (1) the possible role of the 1B(u)(-) state in excited-state processes and (2) the origin and mechanism of formation of the S* state in carotenoids. (c) 2009 Elsevier B. V. All rights reserved.

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页码：1 / 11

页数：11

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