Av. Titov et Ns. Mosyagin, SELF-CONSISTENT RELATIVISTIC EFFECTIVE CORE POTENTIALS FOR TRANSITION-METAL ATOMS - CU, AG, AND AU, Structural chemistry, 6(4-5), 1995, pp. 317-321
A development of the RECP method for the case of transition and rare e
arth elements is suggested. New terms with projectors on the occupatio
n numbers of d and f outermost shells respectively (which can be deter
mined in SCF iterations) are added to the standard RECP operator and t
he corresponding ''self-consistent'' RECP terms are generated for atom
s Cu, Ag and Au. Significant improvement is achieved in reproduction o
f atomic excitation energies as compared with the conventional shape-c
onsistent RECP calculation.