Collision-induced dipoles of rare gas mixtures

New ab initio calculations of the collision-induced dipole moment of the rare gas systems He–Ar, Ne–Ar, Ne–Kr, and Ar–Kr are obtained on the basis of a molecular Hartree–Fock treatment. With these and recent potential functions the spectral moments and line shapes of collision-induced absorption spectra are computed. Reasonable agreement with existing measurements is observed for the first time for the system Ne–Ar and Ne–Kr.