Stability of the Restricted Hartree-Fock-Roothaan Method

Abstract

Newly computed Hartree-Fock-Roothaan wave functions are reported for the atomic negative ions, ${\mathrm{B}}^{-}$, ${\mathrm{C}}^{--}$, ${\mathrm{N}}^{--}$, ${\mathrm{O}}^{--}$, ${\mathrm{Si}}^{--}$, ${\mathrm{P}}^{--}$, ${\mathrm{S}}^{--}$. They are obtained as self-consistently convergent solutions. The implication with regard to the stability of the restricted Hartree-Fock-Roothan method is also discussed.