CCSDT(Q)

Big Changes for Small Noncovalent Dimers: Revisiting the Potential Energy Surfaces of (P2)2 and (PCCP)2 with CCSD(T) Optimizations and Vibrational Frequencies
This article details the re-examination of low-lying stationary points on the potential energy surfaces (PESs) of two challenging …
Eric Van Dornshuld, Gregory S. Tschumper
Cite DOI
Big Changes for Small Noncovalent Dimers: Revisiting the Potential Energy Surfaces of (P2)2 and (PCCP)2 with CCSD(T) Optimizations and Vibrational Frequencies