Effect of Pressure on Absorption Spectra of Lycopene in n-Hexane and CS2 Solvents

The absorption spectra of lycopene in n-hexane and CS2 are measured under high pressure and the results are compared with β-carotene. In the lower pressure range, the deviation from the linear dependence on the Bayliss parameter （BP） for β-carotene is more visible than that for lycopene. With the fu...

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Published inChinese physics letters Vol. 27; no. 1; pp. 108 - 110
Main Author 张伟 刘伟龙 郑植仁 霍明明 李艾华 杨彬
Format Journal Article
LanguageEnglish
Published IOP Publishing 2010
Subjects
Absorption spectra
Back propagation
Bands
CS2
Deviation
Dispersions
Doppler effect
Red shift
Solvents
β-胡萝卜素
压力范围
吸收光谱
正己烷
番茄红素
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/27/1/013301

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Summary:The absorption spectra of lycopene in n-hexane and CS2 are measured under high pressure and the results are compared with β-carotene. In the lower pressure range, the deviation from the linear dependence on the Bayliss parameter （BP） for β-carotene is more visible than that for lycopene. With the further increase of the solvent BP, the 0-0 bands of lycopene and β-carotene red shift at almost the same rate in n-hexane; however, the 0-0 band of lycopene red shifts slower than that of β-carotene in CS2. The origins of these diversities are discussed taking into account the dispersion interactions and structures of solute and solvent molecules.
Bibliography:11-1959/O4
O734
TS202.3
ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/1/013301