Theory of isotope separation of homo and heteronuclear diatomic molecules by adsorption at low temperatures

Cryogenic Laboratory, Dept. of Chemistry, The Ohio State University, U.S.A., U.S.A..

Abstract

The ground state rotational-vibrational energies, E_T for diatomic molecules adsorbed on plane surfaces have been calculated assuming a Morse potential for the surface-molecule interaction. For the molecular hydrogens it is found that the trend of E_T as a function of surface barrier, both in units of [math] is nearly the same for all isotopes. The correlation diagram for the heteronuclear molecules deviates somewhat from that of the homonuclears, the magnitude of the deviation depending on the shift of the center of mass.