| Solvent effects on the S0→S2 absorption spectra of β-carotene |
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| 作者姓名： | 刘伟龙 王德敏 郑植仁 李艾华 苏文辉 |
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| 作者单位： | Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China;Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China;Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China;Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China;Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China;International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China |
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| 基金项目： | Project supported by the NationalNatural Science Foundation of China (Grant No. 10774034). |
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| 摘 要： | Absorption spectra of β -carotene in 31 solventsare measured in ambient conditions. Solvent effects on the 0--0 bandenergy, the bandwidth, and the transition moment of the S0 →S2 transition are analysed. The discrepancies between publishedresults of the solvent effects on the 0--0 band energy areexplained by taking into account microscopic solute-solventinteractions. The contributions of polarity and polarizability ofsolvents to 0--0 band energy and bandwidth are quantitativelydistinguished. The 0--0 transition energy of the S2 state at the gasphase is predicted to locate between 23000 and 23600~cm-1.
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| 收稿时间： | 2009-05-25 |
| 修稿时间： | 2009-07-08 |
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