Abstract
By employing the dissociation energy and the equilibrium bond length for a diatomic molecule as explicit parameters, we generate an improved deformed four-parameter exponential-type potential energy model. It is found that the deformed four-parameter exponential-type potential function is identical to the well-known Tietz potential function for diatomic molecules. The present model can well model the interaction potential energy curve for the 33Σg+ state of Cs2 molecule. The vibrational levels computed by using the improved deformed four-parameter exponential-type potential model are in good agreement with the experimental RKR data and DPF values.
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