Thermodynamic properties for some diatomic molecules with the q-deformed hyperbolic barrier potential

Abstract

In this paper, we obtain analytical vibrational partition function with recent energy spectrum of the deformed hyperbolic barrier potential. We derive different thermodynamic properties for the $\mathrm{RbH}$, $\mathrm{NaK}$, $\mathrm{KRb}$, $\mathrm{NI}$, ${}^7{\mathrm{Li}}_2$ and ${\mathrm{N}}_2$ diatomic molecules. In addition, we obtain the total molar entropy for the two last molecules. Our results are in excellent agreement with the experimental data.

GRAPHICAL ABSTRACT

Keywords:

• Diatomic molecules
• thermodynamic properties
• molar entropy
• q-deformed hyperbolic barrier potential

Acknowledgments

This research work is supported by the The General Direction of Scientific Research and Technological Development (DGRSDT)- Algeria.

Disclosure statement

No potential conflict of interest was reported by the author(s).