The dipole polarizability of the hydrogen molecular cation HD+ and other isotopomers

Fully non-adiabatic calculations are reported of the electric dipole polarizabilities for the N = 0 and N = 1 levels of the ground electronic states of H-2(+) (v less than or equal to 16), D-2(+) (v less than or equal to 24) and HD+ (v less than or equal to 20). For H-2(+) (v = 0, N = 0) the calculated value still differs from the experimental value; this difference cannot be explained by the inclusion of higher order contributions