Ion model and dipole polarizabilities in energy calculations. The dissociation energies of the rare-earth monoxides and the alkaline-earth monoxides and monosulfides

The applicability of the polarized ion model to the gaseous rare-earth monoxides and to the highly electropositive alkaline-earth monoxides and monosulfides has been proved. The polarizability values here used for O−2, S−2, Ca+2, Sr+2, Ba+2, and rare-earth double ions indicate the possibility of establishing a polarizability scale to be used in ion model calculations.