Theoretical Studies on Electronic Absorption Spectra and Thermodynamic Properties of Crocetin Dimethyl Ester

doi:10.6023/cjoc1107052

Chin. J. Org. Chem. ›› 2012, Vol. 32 ›› Issue (01): 121-126.DOI: 10.6023/cjoc1107052 Previous Articles Next Articles

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西红花酸二甲酯电子吸收光谱与热力学性质的理论研究

聂汉, 李权, 赵可清

四川师范大学化学与材料科学学院 “先进功能材料”四川省高校重点实验室成都 610068

收稿日期:2011-07-05 修回日期:2011-09-01 发布日期:2011-09-19
通讯作者: 李权 E-mail:liquan6688@163.com
基金资助:
国家自然科学基金(No. 50973076)、四川省科技计划(No. 2010JY0041)和四川师范大学科研基金(Nos. 09ZDL03, 025156)资助项目.

Theoretical Studies on Electronic Absorption Spectra and Thermodynamic Properties of Crocetin Dimethyl Ester

Nie Han, Li Quan, Zhao Keqing

Key Laboratory of Advanced Functional Materials, Sichuan Province Higher Education System, College of Chemistry and Material Science, Sichuan Normal University, Chengdu 610068

Received:2011-07-05 Revised:2011-09-01 Published:2011-09-19
Contact: Li Quan E-mail:liquan6688@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (No. 50973076), the Science and Technology Program of Sichuan Province (No. 2010JY0041), and the Scientific Reaserch Foundation of Sichuan Normal University (Nos. 09ZDL03, 025156).

The structures, electronic absorption spectra and thermodynamic properties of crocetin dimethyl ester were calculated by using the density functional theory B3LYP method. Then polarized continuum models of tomasi (PCM) have been used to discuss solvent effects. The computational results showed that solvents have no influence on frontier molecular orbital features of crocetin dimethyl ester and solvents action made the maximum absorption wavelength red-shifted about 42 nm. The relationship formulas between temperature and the gaseous thermodynamic properties of crocetin dimethyl ester are as follows: C_mp^Θ ＝189.782+0.925T, S_m^Θ ＝457.503+1.366T, H_m^Θ ＝1164.899+0.195T+4.671×10^-4T², G_m^Θ ＝1164.899－0.263T－8.989×10^-4T². The standard molar formed enthalpy and free energy of crocetin dimethyl ester molecular are respectively －1180.67 and －733.23 kJ·mol^-1 at 298.15 K.

Key words: crocetin dimethyl ester, thermodynamic property, absorption spectrum, frontier molecular orbital, density functional theory

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Nie Han, Li Quan, Zhao Keqing . Theoretical Studies on Electronic Absorption Spectra and Thermodynamic Properties of Crocetin Dimethyl Ester[J]. Chin. J. Org. Chem., 2012, 32(01): 121-126.

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西红花酸二甲酯电子吸收光谱与热力学性质的理论研究

Theoretical Studies on Electronic Absorption Spectra and Thermodynamic Properties of Crocetin Dimethyl Ester

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