Mahapatra, U. S; Chattopadhyay, S; Chaudhuri, R. K
(John Wiley & Sons, Inc, 2011-01)
The complete active space spin-free state-specific multireference Møller-Plesset perturbation theory (SS-MRMPPT) based on the Rayleigh-Schrödinger expansion has proved to be very successful in describing electronic states ...