On Exact analytical calculations of thermodynamic functions of gaseous substances, R. Khordad, A. Avazpour, and A. Ghanbari, Chemical Physics 517 (2019) 30

It is shown that that the exact solution of the Schrodinger equation for the molecule consisting of two atoms interacting via improved Tietz potential, the analytical expressions for the energy of the rotational-vibrational levels, partition function, free energy, mean energy and specific heat, obtained from the solution in the paper Exact analytical calculations of thermodynamic functions of gaseous substances", R. Khordad, A. Avazpour, and A. Ghanbari, Chemical Physics 517 (2019) 30, are incorrect.