THE SCPH+ CATION

We have obtained by ab initio calculations the energetics and the geom etries of the X(1) Sigma(+), a(3) Pi, and A(1) Pi valence states of th e ScPH+ cation, which we have found to be nonrigid in its ground state . We have also examined its bond energies and lengths vis-a-vis the sa me quantities of the free ScP+ and PH species and have generated poten tial curves for its Sc+ + PH and ScP+ + H asymptotic channels.