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Effect of Temperature on the Raman Spectrum of Short-chain Polyenes Biological Molecules beta-Carotene
其他题名论文其他题名
Wang W. W.; Li L.; Li Z. L.; Sun C. L.; Ouyang S. L.; Xu D. P.; Qu G. N.; Li Z. W.; Gao S. Q.; Cao J. S.; Gao F. L.; Zhou Q. A.
2010
发表期刊Chemical Journal of Chinese Universities-Chinese
ISSN0251-0790
卷号31期号:9页码:1864-1867
摘要Raman spectra of beta-carotene with 9 conjugated double bonds polyenes bioligical molecules were measured in dimethyl sulfoxide(DMSO) solution, at temperature range from 298 K to 346 K(25-73 degrees C) in this experiment by Gobin Yvon hr800 Raman spectrometer commreted Linkam, Thms600 heating device. The results show that short-chain polyenes biological molecules beta-carotene have larger Raman scattering cross section[6.5x10(-23) cm(2)/(molecule . Sr)]. Besides resonance effect, the molecular structural order of beta-carotene, which can generate coherent weak damping C-C bond vibration is an important factor, can lead to high Raman scattering cross section. The temperature has great effect on polyenic linear molecular structural order. Due to the temperature increases, the molecular structural order of beta-carotene decreases, which lead to the weak of coherent weakly damping C-C bond vibration, the C-C bond length changes short. Because the C-C bond length is slightly different, the Raman scattering cross section decreases. And the frequency shifts towards higher frequencies, the frequency components of vibration increase, and the Raman linewidth becomes broadened.
收录类别SCI
语种中文
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/25611
专题中科院长春光机所知识产出
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GB/T 7714
Wang W. W.,Li L.,Li Z. L.,et al. Effect of Temperature on the Raman Spectrum of Short-chain Polyenes Biological Molecules beta-Carotene[J]. Chemical Journal of Chinese Universities-Chinese,2010,31(9):1864-1867.
APA Wang W. W..,Li L..,Li Z. L..,Sun C. L..,Ouyang S. L..,...&Zhou Q. A..(2010).Effect of Temperature on the Raman Spectrum of Short-chain Polyenes Biological Molecules beta-Carotene.Chemical Journal of Chinese Universities-Chinese,31(9),1864-1867.
MLA Wang W. W.,et al."Effect of Temperature on the Raman Spectrum of Short-chain Polyenes Biological Molecules beta-Carotene".Chemical Journal of Chinese Universities-Chinese 31.9(2010):1864-1867.
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