Effective oscillator strength distributions of spherically symmetric   atoms for calculating polarizabilities and long-range atom-atom interactions
  Effective oscillator strength distributions are systematically generated and tabulated for the alkali atoms, the alkaline-earth atoms, the alkaline-earth ions, the rare gases and some miscellaneous atoms. These effective distributions are used to compute the dipole, quadrupole and octupole static polarizabilities, and are then applied to the calculation of the dynamic polarizabilities at imaginary frequencies. These polarizabilities can be used to determine the long-range $C_6$, $C_8$ and $C_{10}$ atom-atom interactions for the dimers formed from any of these atoms and ions, and we present tables covering all of these combinations. 
Jun Jiang, J. Mitroy, Yongjun Cheng and M. W. J. Bromley
physics.atom-ph