INFLUENCE OF INTER-MOLECULAR INTERACTIONS ON THE KERR EFFECT IN GASES .1. STATISTICAL-THEORY FOR SPHERICAL TOP MOLECULES

被引:16
作者
DUNMUR, DA
JESSUP, NE
机构
[1] Department of Chemistry, The University, Sheffield
[2] Unilever Research, Port Sunlight Laboratory, Unilever Ltd., Port Sunlight, Wirral, Merseyside
关键词
D O I
10.1080/00268977900103131
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Expressions are derived for the second and third Kerr virial coefficients, Bk and Ck, of spherical top molecules in terms of irreducible cluster polariza-bilities, and values are calculated using the dipole-induced dipole model for argon, krypton, xenon, methane, tetrafluoromethane, neopentane and sulphur hexafluoride. For mixtures of rare gases it is shown that the collision-induced dipole moment makes a negligible contribution to Bk- The effect of the choice of intermolecular potential function on the calculated second Kerr virial coefficients is also demonstrated. It is found that the predominant contributions to Ck arise from the pair polarizability, and that the triplet polarizability is only of minor importance. © 1979 Taylor & Francis Group, LLC.
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页码:697 / 711
页数:15
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