| 叶绿素a分子在乙醇溶剂中的瞬态吸收研究 |
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| 引用本文： | 石英,许瑛珍,苏夏琳,林圣贤,韩克利.叶绿素a分子在乙醇溶剂中的瞬态吸收研究[J].化学物理学报(中文版),2006,19(1):6-10. |
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| 作者姓名： | 石英 许瑛珍 苏夏琳 林圣贤 韩克利 |
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| 基金项目： | 中国科学院资助项目;中国科学院知识创新工程项目 |
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| 摘 要： |
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| 关 键 词： | 飞秒 叶绿素a 瞬态吸收 |
Transient Absorption of the Chlorophyll a in Ethanol |
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| Ying Shi,Y. J. Shiu,Charlene Su,S. H. Lin,Ke-li Han.Transient Absorption of the Chlorophyll a in Ethanol[J].化学物理学报(中文版),2006,19(1):6-10. |
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| Authors: | Ying Shi Y J Shiu Charlene Su S H Lin Ke-li Han |
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| Abstract: | The excited state of Chlorophyll a is investigated by femtosecond transient absorption. The transient absorption spectra of Q band and By band of Chlorophyll a in ethanol have been observed. The fast kinetics of Chlorophyll a which exhibit two ultrafast components were also measured. The one is assigned to transient absorption of the inhomogeneously broadened ground state absorption spectrum, while the other is the response of the solvent to the change of the electron configuration in the excited state due to salvation dynamics of the polar solvent molecules. To understand the anisotropy of Chlorophyll a in ethanol, the anisotropy profile was also performed by 405 nm excitation and found that the anisotropy profile is 0.143. The possible combination of θda, θdb and η at excitation of By band has been simulated. |
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| Keywords: | Femtosecond Chlorophyll a Transient absorption |
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