Femtosecond time-resolved difference absorption spectroscopy of all-trans-beta-Apo-8 '-carotenal
文献类型：期刊论文
| 作者 | Zhang, L ; Quan, DH ; Wang, L ; Yang, GZ ; Weng, YX |
| 刊名 | SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY
 |
| 出版日期 | 2004 |
| 卷号 | 47期号:2页码:208 |
| 关键词 | CHLOROPHYLL-A-PROTEIN ENERGY-TRANSFER BETA-CAROTENE EXCITED-STATES RADIATIONLESS PROCESSES INTERNAL-CONVERSION FLUORESCENCE DYNAMICS DEPENDENCE PERIDININ |
| ISSN号 | 1672-1799 |
| 通讯作者 | Weng, YX: Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | The fenntosecond time-resolved difference absorption spectra of all-trans-A Apo-8'-carotenal have been recorded and analyzed by the singular-value decomposition (SVID) method followed by global fitting using a sequential model for the excited-state energy relaxation. With this model, we have obtained the excited-state absorption spectra and the lifetimes of the corresponding excited states both in nonpolar solvent n-hexane and polar solvent methanol. Three excited states, namely S-3(190fs), S-2(2.32ps) and S-1 (26ps) in n-hexane, and two excited states S-2(190fs) and S-1(9.4ps) in methanol have been observed. The excited-state absorption spectra of all-trans-beta-Apo-8'-carotenal in methanol display a red shift and broadeness, while the lifetime of S, state becomes shorter. It is proposed that these effects are related to the presence of a carbonyl functional group that leads to the solvent effect on the excited-state energy level. At the same time, it is shown that the SVD method is a useful tool in resolving the time-resolved absorption spectra. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38072]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, L,Quan, DH,Wang, L,et al. Femtosecond time-resolved difference absorption spectroscopy of all-trans-beta-Apo-8 '-carotenal[J]. SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY,2004,47(2):208. |
| APA | Zhang, L,Quan, DH,Wang, L,Yang, GZ,&Weng, YX.(2004).Femtosecond time-resolved difference absorption spectroscopy of all-trans-beta-Apo-8 '-carotenal.SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY,47(2),208. |
| MLA | Zhang, L,et al."Femtosecond time-resolved difference absorption spectroscopy of all-trans-beta-Apo-8 '-carotenal".SCIENCE IN CHINA SERIES G-PHYSICS ASTRONOMY 47.2(2004):208. |
入库方式： OAI收割
来源：物理研究所
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