Analysis of long range dispersion and exchange interactions between one Na atom and one K atom

被引：14

作者：

Zemke, WT ^{[1
]}

Stwalley, WC

机构：

[1] Wartburg Coll, Dept Chem, Waverly, IA 50677 USA

[2] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

[3] Univ Connecticut, Dept Chem, Storrs, CT 06269 USA

[4] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 11期

关键词：

D O I：

10.1063/1.479782

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 article critically surveys spectroscopic data for the two lowest states (X (1)Sigma(+) and a (3)Sigma(+)) of NaK. These states both dissociate to ground state Na and K atoms. Since both states are known precisely to near dissociation, they can be used to determine experimental values of the separate Coulombic and exchange contributions to the long-range interaction potentials, which agree reasonably well with theory. We also discuss the dissociation energy of both of the states and recommend D(e)(X (1)Sigma(+))=5273.65 +/- 0.10 cm(-1) and D(e)(a (3)Sigma(+))=207.79 +/- 0.10 cm(-1). (C) 1999 American Institute of Physics. [S0021-9606(99)30235-X].

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页码：4956 / 4961

页数：6

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