凝聚态分子间动力学:用振动光谱研究温度对各向异性弛豫的影响

Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences Pub Date : 2020-09-15 DOI:10.56017/2181-1318.1119

B. Eshchanov, S. Otajonov, Jurat Gayipov, D. Xudoyberdiyeva, Sarvarbek Qurbanbayev

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引用次数: 1

摘要

通过对光的各向异性散射光谱的实验研究，分析了芳烃分子的取向运动特征。从抑制旋转模型的角度对所得结果进行了解释，并估计了旋转自由度和振动自由度对分子光谱的贡献。随着被研究液体温度的升高和接近临界状态，转动自由度“冻结”，振动自由度变得更加显著。

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Intermolecular dynamics of condensed state: study of temperature effect on anisotropy relaxation by vibration spectroscopy

As a result of the experimental study of the spectra of anisotropic scattering of light, a character of orientation movement of molecules in aromatic hydrocarbons has been analyzed. The obtained results have been interpreted from the viewpoint of a model of inhibited rotation and the contributions of the rotational and vibrational degrees of freedom to a molecule spectrum have been estimated. With increasing temperature of liquids under study and approaching a critical state, the rotational degrees of freedom "freeze", and the vibrational degrees have become more significant.

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Bulletin of National University of Uzbekistan: Mathematics and Natural Sciences

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