Singlet excited state energy transfer among pigments in HL-LH2 | |
Zhao Xiao-Hui1,2,3; Liang Jun1,2; Ma Fei1,2; Su Wen-Jie1; Wang Peng1; Fu Li-Min1; Ai Xi-Cheng1; Zhang Jian-Ping1,2 | |
刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
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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. |
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