Solvent effects on the S0→S2 absorption spectra of β-carotene

doi:10.1088/1674-1056/19/1/013102

中国物理B ›› 2010, Vol. 19 ›› Issue (1): 13102-013102.doi: 10.1088/1674-1056/19/1/013102

Solvent effects on the S₀→S₂ absorption spectra of β-carotene

刘伟龙¹, 王德敏¹, 郑植仁¹, 李艾华¹, 苏文辉²

(1)Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China; (2)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

收稿日期:2009-05-25 修回日期:2009-07-08 出版日期:2010-01-15 发布日期:2010-01-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10774034).

Solvent effects on the S₀→S₂ absorption spectra of $\beta$-carotene

Liu Wei-Long(刘伟龙)^a), Wang De-Min(王德敏)^a), Zheng Zhi-Ren(郑植仁)^a)†, Li Ai-Hua(李艾华)^a), and Su Wen-Hui(苏文辉)^a)b)

^a Center for Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China; ^b International Center for Materials Physics, Chinese Academy of Sciences, Shenyang 110015, China

Received:2009-05-25 Revised:2009-07-08 Online:2010-01-15 Published:2010-01-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10774034).

摘要/Abstract

摘要： Absorption spectra of β -carotene in 31 solvents are measured in ambient conditions. Solvent effects on the 0--0 band energy, the bandwidth, and the transition moment of the S₀ → S₂ transition are analysed. The discrepancies between published results of the solvent effects on the 0--0 band energy are explained by taking into account microscopic solute-solvent interactions. The contributions of polarity and polarizability of solvents to 0--0 band energy and bandwidth are quantitatively distinguished. The 0--0 transition energy of the S₂ state at the gas phase is predicted to locate between 23000 and 23600~cm^-1.

Abstract: Absorption spectra of $\beta$ -carotene in 31 solvents are measured in ambient conditions. Solvent effects on the 0--0 band energy, the bandwidth, and the transition moment of the S₀ → S₂ transition are analysed. The discrepancies between published results of the solvent effects on the 0--0 band energy are explained by taking into account microscopic solute-solvent interactions. The contributions of polarity and polarizability of solvents to 0--0 band energy and bandwidth are quantitatively distinguished. The 0--0 transition energy of the S₂ state at the gas phase is predicted to locate between 23000 and 23600 cm^-1.

Key words: solvent effects , absorption spectra , $\beta$-carotene

中图分类号: (Liquids)

78.40.Dw

61.25.Em (Molecular liquids)

刘伟龙, 王德敏, 郑植仁, 李艾华, 苏文辉. Solvent effects on the S₀→S₂ absorption spectra of β-carotene[J]. 中国物理B, 2010, 19(1): 13102-013102.

Liu Wei-Long(刘伟龙), Wang De-Min(王德敏), Zheng Zhi-Ren(郑植仁), Li Ai-Hua(李艾华), and Su Wen-Hui(苏文辉) . Solvent effects on the S₀→S₂ absorption spectra of $\beta$-carotene[J]. Chin. Phys. B, 2010, 19(1): 13102-013102.

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Solvent effects on the S₀→S₂ absorption spectra of β-carotene

Solvent effects on the S₀→S₂ absorption spectra of $\beta$-carotene

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