Abstract:Second-order Møller Plesset perturbation theory (MP2) is the most expedient wavefunction-based method for considering electron correlation in quantum chemical calculations and as such provides a cost-effective framework to assess the effects of basis sets on correlation energies, for which the complete basis set (CBS) limit can commonly only be obtained via extrapolation techniques. Software packages providing MP2 energies are commonly based on atom-centered bases with innate issues related to possible basis s… Show more
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