Comment on 'Analytic solutions for vibrational energy levels of the pseudoharmonic potential'

We argue that the pseudoharmonic potential provides an unsuitable description of the interatomic potential-energy function of a diatomic molecule because of its wrong behaviour at origin and infinity and because it does not predict dissociation. In addition to it, the level spacing stemming from this model does not match the well known vibration-rotation spectrum of a diatomic molecule. We also show that the author derived a nonsensical nonrelativistic schrödinger equation for a diatomic molecule in a magnetic field and failed to solve it correctly. The dependence of the resulting energy levels on the angle between the vector position and the magnetic field is a result of a gross mistake.Fil: Fernández, Francisco Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentin