A comparative study of the ground state internuclear potentials of alkali hydrides and estimation of dissociation energies with the use of the RPC (reduced potential curve) method

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Abstract
The RKR potential curves for the ground states of alkali hydrides, calculated in recent years by several authors on the basis of new measurements employing modern techniques, have been analyzed with the use of the RPC method. The ground state reduced potential curves of the alkali hydrides are found to coincide to a high degree of approximation. This group of molecules (together with the group of dialkali molecules reported elsewhere) are slightly anomalous compared to the ground states of other diatomic molecules. The RPC method is used to critically evaluate the dissociation energies of the alkali hydrides using the noncrossing rule of the RPC scheme. This evaluation is essentially in accord with other recent values of dissociation energy.

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