Semi-emprical non-adiabatic potential energy curves for hydrogen, deutirium, and their molecule-ions

Effective non-adiabatic potential curves were constructed for the ground states of the deuterium molecule and of the hydrogen and deuterium molecule-ions by scaling our empirical non-adiabatic coupling correction for hydrogen according to the approximate rules given by Bunker. These effective potentials were refined by the techniques we have described previously, and were then used to generate the rotation–vibration energy-level spectra for H2+ and D2+; tables of these energy levels, which we consider to be the best available at the present time, are presented.