  It is shown that the energy spectrum of the pure vibrational levels of the
molecule consisting of two atoms interacting with each other via the modified
Rosen-Morse potential, the analytical expressions for the vibrational partition
function and enthalpy of the diatomic molecule, obtained in the paper
Prediction of enthalpy for nitrogen gas, M. Deng, C.S. Jia, Evr. Phys. J. Plus
133, 258 (2018), are incorrect.
