The Improved Deformed Exponential‐type Potential Energy Model for N₂, NI, ScI, and RbH Diatomic Molecules

Abstract

The dissociation energy and the equilibrium bond length have been employed as explicit parameters to obtain an improved version of the deformed exponential‐type potential (IDEP). The potential parameters have been defined in terms of the molecular parameters. The IDEP has been used to model an inter‐nuclear interaction potential curves for different electronic states of dinitrogen, nitrogen monoiodide, scandium monoiodide, and rubidium hydride molecules. Also, we have obtained the average absolute deviations of the IDEP from the experimental Rydberg‐Klein‐Rees (RKR) data points of the dissociation energy for the selected diatomic molecules. This study has shown to be highly relevant to the study of thermodynamic and thermochemical functions of diatomic molecules since the IDEP is considered efficient for the description of potential energy interaction.

Dissociation Energies, r-Centroids and Franck-Condon Factors of H2 and N2+ Astrophysical Important Molecules

“…Experimentally determined vibrational levels are used to construct the potential energy curve. The RKRV method [16] and [17] has been used for obtaining the classical turning points, r max , r min of the vibrational motion. The turning points are given in terms of functions f and g as follows:…”

Extended improved multiparameter exponential‐type potential energy function for diatomic molecules

“…Additionally, researchers have sequentially proposed the utilization of potential models that include the dissociation energy ( D e ) and the equilibrium nuclear distance ( r e ) of diatomic molecules as essential parameters [6–9]. These improved empirical PEFs are extensively employed in modeling PECs for diatomic molecules [10–13], as well as in the calculation of vibrational–rotational energy levels [14, 15] and the determination of thermodynamic properties [16–18].…”

Energy eigenvalues and finite-temperature magnetization for the improved Scarf II potential in the presence of external magnetic and Aharonov-Bohm flux fields

“…Examples of diatomic molecule potentials are listed in Refs. [ [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] ].…”