ANISOTROPY-SENSITIVE CROSS-SECTIONS FOR CO

Classical trajectory rigid-rotor calculations have been employed to ca lculate the viscomagnetic and thermomagnetic effects, broadening of th e Depolarized Rayleigh line and NMR relaxation using the anisotropic a b initio potential energy hypersurface of van der Pol et al. for tempe ratures between 77 K and 1500 K. Comparison with experiment shows that the calculated relaxation cross-sections generally overestimate the v alues inferred from experiment by 20-30%, suggesting that this potenti al surface is too anisotropic in the well region. The small coupling c ross-sections are generally in satisfactory agreement with the measure ments.