Two different pathways of internal conversion in carotenoids depending on the length of the conjugated chain

被引：91

作者：

Fujii, R

Inaba, T

Watanabe, Y

Koyama, Y

Zhang, JP

机构：

[1] Kwansei Gakuin Univ, Fac Sci & Technol, Sanda 6691337, Japan

[2] Chinese Acad Sci, Inst Chem, Beijing 10080, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 369卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(02)01999-1

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：

Near-infrared, subpicosecond time-resolved absorption spectroscopy of all-trans carotenoids having the number of conjugated double bonds, n = 9-13, identified two different pathways of internal conversion in accordance with the energy diagram recently determined by measurements of resonance-Raman excitation profiles (RREPs) [K. Furuichi, T. Sashima, Y. Koyama, Chem. Phys. Lett. 356 (2002) 547]: the 1B(u)(+) --> 1B(u)(-) --> 2A(g)(-) internal conversion for neurosporene (n = 9) and spheroidene (n = 10), whereas the 1B(u)(+) --> 3A(g)(-) -->2A(g)(-) internal conversion for lycopene (n = 11), anhyodrorhodovibrin (n = 12) and spirilloxanthin (n = 13). (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：165 / 172

页数：8

共 24 条

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