CALCULATION OF FREQUENCY-DEPENDENT POLARIZABILITIES FOR OPEN-SHELL SYSTEMS AT THE 2ND-ORDER MOLLER-PLESSET PERTURBATION-THEORY LEVEL BASED ON THE QUASI-ENERGY DERIVATIVE METHOD
T. Kobayashi et al., CALCULATION OF FREQUENCY-DEPENDENT POLARIZABILITIES FOR OPEN-SHELL SYSTEMS AT THE 2ND-ORDER MOLLER-PLESSET PERTURBATION-THEORY LEVEL BASED ON THE QUASI-ENERGY DERIVATIVE METHOD, International journal of quantum chemistry, 65(5), 1997, pp. 665-677
We extended the dynamic response theory in the Moller-Plesset perturba
tion theory (MPPT) based on the quasi-energy derivative (QED) method f
or closed-shell systems to that for open-shell systems. In this study
we perform the calculations of frequency-dependent polarizabilities al
pha(-omega; omega) for nondegenerate open-shell doubler systems (Li, N
a, and K atoms and BeH, MgH, CaH, CN, and NH2 molecules) in the second
-order Moller-Plesset perturbation theory (MP2) starting with time-dep
endent restricted open-shell Hartree-Fock (TDROHF) approximation. (C)
1997 John Wiley & Sons, Inc.