Abstract
The potential energy curves of the H +2 in the lowest even and odd π and δ states, that is in the 2pπ u , 3dπ g and 3dδ g , 4fδ u excited states are determined with a simple analytical non-exponential wave function in elliptical coordinates using the variational method. The calculated energy values agree well with the corresponding exact ones in the whole considered range of the internuclear distance (0.5≤R≤10a 0). The 2pπ u state has a shallow potential minimum.
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Tamássy-Lentei, I. Non-exponential wave functions in elliptical coordinates for molecules II. Acta Physica 40, 117–122 (1976). https://doi.org/10.1007/BF03157095
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DOI: https://doi.org/10.1007/BF03157095