Ab initio results for V I and Cr I

Ab initio results (obtained by means of a numerical, multi-configuration Hartree-Fock procedure) are reported for the highest spin states of 3d n 4s and (3d+4s) n 4p in neutral V and Cr. The importance of allowing the 3d orbital in 3d n 4p to differ from that in 3d n-1 4s4p is demonstrated, particularly in Cr where the two configurations are nearly degenerate. More extensive correlation studies are reported for Cr. Energy differences and oscillator strengths are in fair agreement but the dominant component of z 7 P, usually designated 3d 5 4p, is the 3d 4 4s4p configuration.