Abstract
A new scheme for generating and selecting configurational wave functions (CWF) including the correlation effects is suggested. Standard Möller-Plesset perturbation theory (SMP) is modified in such a way that the newly constructed CWF and the Hartree-Fock reference determinant are the eigenfunctions of a zero-order Hamiltonian. Possessing all advantages of SMP, the calculation scheme allows for more than 80% of the empirical correlation energy in the second order. The results for diatomic hydrides are comparable in accuracy to those obtained by the configuration interaction method.
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Additional information
Dnepropetrovsk State University, Ukrainian Chemical Technological University. Translated fromZhurnal Strukturnoi Khimii, Vol. 36, No. 1, pp. 3–8, January–February, 1995.
Translated by O. Kharlamova
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Glushkov, V.N., Tsaune, A.Y. New possibilities of Möller-Plesset perturbation theory for calculating correlation energies of closed-shell systems. J Struct Chem 36, 1–5 (1995). https://doi.org/10.1007/BF02577742
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DOI: https://doi.org/10.1007/BF02577742