Sf. Vyboishchikov et al., TOPOLOGICAL ANALYSIS OF ELECTRON-DENSITY DISTRIBUTION TAKEN FROM A PSEUDOPOTENTIAL CALCULATION, Journal of computational chemistry, 18(3), 1997, pp. 416-429
Theoretical studies of the electron density topology at the bond criti
cal point for some small molecules, Ti, and Mo organometallic complexe
s were undertaken in order to understand the reason for the failure of
the topological analysis of the coreless electron densities obtained
from a pseudopotential calculation. We show that the absence of the co
re electron density is the main reason for such behavior. The erratic
behavior of the effective core potentials electron densities can be co
rrected by adding atomic electron core density obtained from a single-
atom Hartree-Fock calculation. The effect of orthogonalization of the
core orbital with the valence orbitals was also investigated. (C) 1997
by John Wiley & Sons, Inc.