AN INTERMOLECULAR POTENTIAL FOR NITROGEN FROM A MULTI-PROPERTY ANALYSIS

New measurements are reported for the velocity dependence of the integ ral cross-section for N-2-N-2 scattering showing the glory oscillation s. These data are analysed along with recent high precision second-vir ial coefficient data and traditional transport property measurements t o yield an improved N-2-N-2 potential energy surface by adjusting cert ain parameters in the fit to this surface by van der Avoird et al. The new potential gives improved agreement with the integral cross-sectio n, virial and transport data. Transport and relaxation cross-sections sensitive to anisotropy are very close to those obtained previously us ing the van der Avoird et al. surface. New comparisons with rotational relaxation and NMR relaxation data are reported.