欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
引用一种带有量纲的电子-声子相互作用常数,很容易建立它与黄昆因子的关系式,进而计算出类胡萝卜素分子每个碳碳振动模的电子-声子耦合常数。测量了β胡萝卜素分子在极性溶剂1,2-二氯乙烷和非极性溶剂环己烷中20～60益的温度范围内紫外-可见吸收光谱和共振拉曼光谱。结果表明,在极性溶剂1,2-二氯乙烷中,β胡萝卜素分子的碳碳键拉曼散射截面小,黄昆因子、电子-声子耦合数比非极性溶剂中大。为了解释这种现象,我们引入线性多烯分子的两种模型,即FACOliveria引入的有效共轭长度模型和DYuParas-chuk提出的相干弱阻尼电子-晶格振动模型。
英文摘要：
The relation between electron-phonon coupling constants with dimension and Huang-Ryes factor is easily established as we reference the electron-phonon coupling constants. Then we work out every C-C bond vibration mode of electron-phonon coupling constants of carotenoid. The UV-Vis absorption and Raman spectra of β-carotene in polar 1,2-dicholoroethane and nonpolar cyclohexane were characterized at the temperature range from 20 ~ 60 ℃. The results showed that the Raman scattering cross-section for C—C bond of β-carotene in polar solvent 1,2-dicholoroethane is small,Huang-Ryes factor and electron-phonon coupling constants are larger than those in nonpolar solvent.The experiment phenomena were explained by Onsager solvent effects theory,effective conjugated length and coherent weakly damped electron-lattice vibration.
同期刊论文项目
同项目期刊论文
Investigation of inter-molecular hydrogen bonding in the binary mixture(acetone + water) by cxoncent
Raman spectroscopy study on the v1-2v2 Fermi resonance of liquid carbon disulfisde in binary solutio
Chen yuan zheng, Liu tianyuan, Qu guan nan, Sun shang, Gao shu qin, Zhou Mi, Sun chenglin, Li zuowei
Study of asymmetric wavenumber shift of the Fermi doublet V1-2V2 in the Raman spectrum of liquid car
Stiffness Tunable Molecular Spring Washers:High-Pressure Raman Investigations on Porphyrin Self-Asse
Effect of solution concentration on the structured order and optical properties of short-chain ploye
Investigation of hydrogen bonding in neat dimethyl sulfoxide and binary mixture (dimethyl sulfoxide+
Thickness and stacking geometry effects on high frequency overtong and combination Raman modes of gr
Study of high-pressure Raman intensity behavior of aromatic hydrocarbons:Benzene,biphenyl and naphth
The effect of anti-hydrogen bond on Fermi resonance:A Raman spectroscopic study of the Fermi doublet
The effecr of the Fermi resonance on Raman scattering cross sections of the Fermi doublet v1 and 2v2
期刊信息
位置：