Correlations beyond CCSD(T) for accurate study of Hg${}_2$ and Cp${}_2$

A. N. Petrov, N. S. Mosyagin, A. V. Titov +2

Contributions from high-order (non-perturbative triple and quadruple) cluster amplitudes to the dissociation energies, equilibrium distances, and vibrational constants for the grou…