Intermolecular potential energy surfaces and bound states in F–HF.

Semiempiricalpotential energy surfaces for F–HF are constructed, based on recent Ne–HF, Ne–F, and Ne–Ne potentials. The electrostatic forces due to the quadrupole of the F atom are included. The potentials are presented in diabatic and adiabatic representations, with and without spin–orbit coupling. Fully coupled bound-state calculations are carried out, and the resulting energy levels and wave functions are analyzed. The well depth is 317 cm−1, and the ground state is bound by 174 cm−1. The complex is a promising candidate for spectroscopic observation, which would provide detailed information on the potential energy surfaces in the entrance and exit valleys of the F+HFreaction