Singlet excited state energy transfer among pigments in HL-LH2

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	Singlet excited state energy transfer among pigments in HL-LH2
	Zhao Xiao-Hui 1,2,3; Liang Jun 1,2; Ma Fei 1,2; Su Wen-Jie 1; Wang Peng 1; Fu Li-Min 1; Ai Xi-Cheng 1; Zhang Jian-Ping 1,2
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2008-01-10
卷号	29 期号:1 页码:149-153
关键词	Peripheral Light-harvesting Complex Bacteriochlorophyll Carotenoid Excited State Energy Transfer Time-resolved Spectrum
ISSN号	0251-0790
英文摘要	Under excitation of 500 and 800 nm, femto-second time-resolved absorption spectroscopy was used to observe the characteristic absorption of carotenoids (Cars) with various conjugation lengths and bacteriochlorophyll a (BChl a) with different Q(gamma) bands, i.e. B800 and B850 aggregates, in the high light cultured peripheral light-harvesting complex (HL-LH2) from Rhodopseudomonas (Rps.) palustris. Spectroscopic dynamics analysis suggests that the complicated singlet excited state energy equilibrium possibly exists among various carotenoids and multi-channel singlet excited state energy transfer occurs between Cars and BChl as. B800 mainly accepts the excitation energy from S-1 and S-2 states of Cars, and B850 from the S-1 state of Car with the longest conjugation length (conjugated double bonds number n = 13) and B800 as well. The whole singlet excited state energy transfer process can be completed in 3-5 ps.
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000252618000031
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/64347]
专题	中国科学院化学研究所
通讯作者	Wang Peng
作者单位	1.Renmin Univ China, Coll Sci, Dept Chem, Beijing 100872, Peoples R China 2.Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, BNLMS, Beijing 100080, Peoples R China 3.Hebei Univ, Coll Phys Sci & Technol, Baoding 071002, Peoples R China
推荐引用方式 GB/T 7714	Zhao Xiao-Hui,Liang Jun,Ma Fei,et al. Singlet excited state energy transfer among pigments in HL-LH2[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2008,29(1):149-153.
APA	Zhao Xiao-Hui.,Liang Jun.,Ma Fei.,Su Wen-Jie.,Wang Peng.,...&Zhang Jian-Ping.(2008).Singlet excited state energy transfer among pigments in HL-LH2.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,29(1),149-153.
MLA	Zhao Xiao-Hui,et al."Singlet excited state energy transfer among pigments in HL-LH2".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 29.1(2008):149-153.