Calculation of radial couplings between approximate wavefunctions in atomic collisions. II

For pt.I see ibid., vol.10, no.5, p.861 (1977). A generalisation of a scheme, proposed by Macias and Riera (pt.1) to calculate radial couplings which appear in the molecular approach to atomic collisions, is presented for two-centre expansions of the wavefunctions. An example is chosen to show the efficiency of the method, and the effect of linear dependence in the basis set on the energies and couplings is studied.