Exact exchange and Wilson–Levy correlation: a pragmatic device for studying complex weakly-bonded systems
Abstract
The Wilson–Levy (WL) correlation functional is used together with Hartree–Fock (HF) theory to evaluate interaction energies at intermediate separations (i.e. around equilibrium separation) for several weakly-bonded systems. The HF+WL approach reproduces binding trends for all complexes studied: selected rare-gas dimers, isomers of the methane dimer,