Abstract

The validity of the function counterpoise (CP) correction method for the basis set superposition error (BSSE) is tested by ab initio calculation of the Ne-Ne interaction energy at the level of the complete fourth-order MOller-Plesset perturbation theory. The scheme of the test procedure is briefly introduced. The results of this calculation support the CP method. The related issues such as BSSE and the basis set for the calculation of intermolecular potentials are discussed

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