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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

Bonding in Small Diatomic Molecules: an Analysis Using Simplified Group Function (SGF) Theory

WA Shapley and PE Schipper

Australian Journal of Chemistry 47(11) 2047 - 2063
Published: 1994

Abstract

Simplified group function (SGF) theory is used to analyse the energetic contributions to the interatomic potentials of the diatomics H2+, H2, He2+ and He2. These species, which contain one, two, three and four electrons respectively, range from the strongly (H2) to the weakly (He2) bonded chemical entities. SGF theory provides a simple conceptual model of the processes occurring during chemical bonding, and the results obtained in this work may be generalized so as to explain the bonding in larger, more complex systems. The relative merits of the perturbational and variational approaches and of the Lowdin and Gram-Schmidt orthogonalization procedures are discussed.

https://doi.org/10.1071/CH9942047

© CSIRO 1994

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