POTENTIAL-ENERGY FUNCTIONS OF DIATOMIC-MOLECULES OF THE NOBLE-GASES .2. UNLIKE NUCLEAR SPECIES

By transforming the available functions of potential energy on internuclear distance of the diatomic molecules formed from two unlike atoms among He, Ne, Ar, Kr and Xe into the form V(z), we predicted the wavenumbers of both vibrational and pure rotational transitions. We compared our universal potential-energy function, developed on the basis of properties of the noble-gas diatomic species with like nuclei, with that of these heteronuclear species belonging to the same family. The values of R(e) and c0 from correlations with the atomic electric polarisabilities of the atomic species according to appropriate combining relations apply to heteronuclear molecules just as well as previously to homonuclear molecules.