Diffusion Coefficients of Electronically Excited Molecules

被引：3

作者：

Sharipov, A. S. ^{[1
]}

Loukhovitski, B. I. ^{[1
]}

Pelevkin, A. V. ^{[1
]}

机构：

[1] Cent Inst Aviat Motors, Moscow 111116, Russia

来源：

FLUID DYNAMICS | 2023年 / 58卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

electronically excited states; polarizability; dipole moment; collisional diameter; diffusion coefficient; TRANSPORT-PROPERTIES; POLARIZABILITY; DIAMETERS; PRESSURE; IGNITION; KINETICS; MIXTURE;

D O I：

10.1134/S0015462823600943

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The influence of electronic excitation of molecules on their diffusion coefficients is studied. Based on the electrical properties of some molecules (O-2, OH, CO, N-2, H2O, and HO2) in various electronic states reported elsewhere and obtained by us using quantum-chemical calculations, the binary coefficients of diffusion on the main components of atmospheric air (N-2, O-2, H2O, and Ar) over a wide temperature range are estimated. It is shown that the diffusion coefficients of electronically excited molecules can differ significantly from those of the specified molecules in the ground electronic state, especially for high excitation energies, and in the case of the diffusion of a polar molecule in a polar buffer gas.

引用

页码：787 / 795

页数：9

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