We present the ab initio potential energy curves of the lowest 2PI and
2SIGMA+ valence states of the scandium phosphide cation, ScP+. Within
the resolving power of our calculations, the two states are practical
ly degenerate, with a binding energy D(e) almost-equal-to 31.0 kcal/mo
l and equilibrium geometries r(e)(2PI) = 2.34 angstrom and r(e)(2SIGMA
+) = 2.20 angstrom