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Revista mexicana de física
versión impresa ISSN 0035-001X
Resumen
CHABI, K. y BOUMALI, A.. Thermal properties of three-dimensional Morse potential for some diatomic molecules via Euler-Maclaurin approximation. Rev. mex. fis. [online]. 2020, vol.66, n.1, pp.110-120. Epub 27-Nov-2020. ISSN 0035-001X. https://doi.org/10.31349/revmexfis.66.110.
The purpose of this study is to develop a method of calculating the vibration partition function of diatomic molecules for the Morse potential energy. After a brief introduction about the eigensolutions obtained for the problem in question.Via the Euler-Maclaurin formula, we determine the thermal properties for four diatomic molecules, such as H2, HCl, LiH, and CO. These different cases are exposed and explained by the appropriate plots of the thermal properties. In addition, we show that our method to calculate the thermal properties can be used to determine important thermodynamic quantities.
Palabras llave : Partition function; Bound states of three-dimensional Morse potential; the Euler-Maclaurin formula; diatomic molecules; 03.60.-w; 03.60.Ge; 05.30.-d; 05.70.-a.