Proceedings of the International School of Physics "Enrico Fermi.", Volume 75

amagat anisotropic approximation argon atoms autocorrelation function average behaviour binary BIRNBAUM calculated Chem CILS cm-¹ collision components contribution correlation function denotes density fluctuations dependence depolarized diatomic dipole moment discussed distribution function dynamics effects electric field equation evaluated experiment experimental exponential expression factor far-infra-red Fourier transform frequency gases GELBART given H. L. WELSH induced dipole infra-red integrated intensity interaction intermolecular intermolecular force isotropic KIELICH KRANENDONK Lett line shape linear liquid memory function molecular-dynamics molecules moments motion N₂ neutron scattering obtained orientational pair parameters particles perturbation phonon Phys polar polarizability potential quantities r₁ Raman Raman scattering Rayleigh scattering relative rotational simulations spectra spectral density spectroscopy spectrum spherical symmetry temperature tensor term theoretical theory tion transitions translational translational band two-body values vector velocity vibrational wave vector width zero