Sinha Ray, S; Ghosh, P; Chaudhuri, R. K; Chattopadhyay, S
(American Institute of Physics, 2017-02)
The state-specific multireference perturbation theory (SSMRPT) with an improved virtual orbital complete active space configuration interaction (IVO-CASCI) reference function [called as IVO-SSMRPT] is used to investigate ...