Author： Sun Yu He Su Jia Chun-Sheng
Publisher： IOP Publishing
ISSN： 1402-4896
Source： Physica Scripta, Vol.87, Iss.2, 2013-02, pp. : 25301-25305
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Abstract
By applying the dissociation energy and the equilibrium bond length for a diatomic molecule as explicit parameters, we generate an improved expression for the deformed modified Rosen-Morse potential energy model. It is found that the deformed modified Rosen-Morse potential model and the well-known Tietz potential model are the same empirical potential function for diatomic molecules. In terms of the energy spectrum expression of the deformed modified Rosen-Morse potential model, we obtain exact closed-form expressions for diatomic anharmonicity constants
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