On the Long-range Interactions between Two Hydrogen Atoms and Two Helium Atoms
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概要
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The numerical results of the interaction energy between two hydrogen atoms and two helium atoms are examined with the use of exact formulae of the second-order perturbation energy using the Unsöld approximation. It is found that the analytic expression gives a good long-range interaction energy between two hydrogen atoms comparable to the best variational results so far obtained. In the case of two helium atoms, the result lies in between experimental data for large nuclear distances; this seems to support the reliability of the present estimation. Finally, the effectiveness of the Unsöld approximation is remarked on.
- 公益社団法人 日本化学会の論文
著者
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Fukui Kenichi
Department Of Chemistry Graduate School Of Science The University Of Tokyo
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Yamabe Tokio
Department of Hydrocarbon Chemistry, Kyoto University
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Yamabe Tokio
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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Ishimaru Shingo
Department of Hydrocarbon Chemistry, Faculty of Engineering, Kyoto University
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