Orbital valence force field in tetrahedral oxides and oxyanions of transition metals

Abstract

The orbital valence force field has been used to calculate the force constants of some oxides and oxyanions of transition metals, e.g. MnO₄^2-, MnO₄^3-, RuO₄, RuO₄-, Ru0₄^2-, and OsO₄. The force constants are compared with the Urey-Bradley force constants and have been discussed briefly in relation to relative stabilities of the corresponding ions. The applicability of the Lennard-Jones potential, to approximate the interaction between non-bonded atoms, has been examined.