ANALYSIS OF LONG-RANGE DISPERSION AND EXCHANGE INTERACTIONS BETWEEN 2 NA ATOMS

被引：69

作者：

ZEMKE, WT

STWALLEY, WC

机构：

[1] UNIV IOWA, IOWA LASER FACIL, IOWA CITY, IA 52242 USA

[2] UNIV IOWA, DEPT CHEM & PHYS & ASTRON, IOWA CITY, IA 52242 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 100卷 / 04期

关键词：

D O I：

10.1063/1.467249

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：

This paper critically surveys the best available data for the two lowest states (X(1) Sigma(g)(+) and a(3) Sigma(u)(+)) of Na-2. Since both states are known up to near dissociation, they can be used to determine the separate Coulomb and exchange contributions to the intermediate and long range interaction potentials. The multipolar expansion representation of the Coulomb (dispersion) energy at long range (-Sigma(n)C(n)/R(n)) and the exponential representation of the exchange energy at long range (Ae(-aR)) are tested.

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页码：2661 / 2670

页数：10

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