Decomposition of Møller-Plesset Energies within the Quantum Theory of Atoms-in-Molecules - Normandie Université Access content directly
Journal Articles Journal of Physical Chemistry A Year : 2018

Decomposition of Møller-Plesset Energies within the Quantum Theory of Atoms-in-Molecules

A.F. Silva
  • Function : Author
M.A. Vincent
  • Function : Author
P.L.A. Popelier
  • Function : Author

Abstract

We discuss two main approaches to decompose the Møller–Plesset perturbation theory molecular energies into atomic contributions within the interacting quantum atoms (IQA) formalism, as implemented in the programs Morphy and AIMAll. For this purpose, the so-called intraatomic energies (also known as self-energies) of a representative set of 55 small molecules are compared with each other. The origin of the possible discrepancies between both approaches is analyzed, and linear models linking the two approaches are proposed for each atom type.

Dates and versions

hal-02024537 , version 1 (19-02-2019)

Identifiers

Cite

Vincent Tognetti, A.F. Silva, M.A. Vincent, Laurent Joubert, P.L.A. Popelier. Decomposition of Møller-Plesset Energies within the Quantum Theory of Atoms-in-Molecules. Journal of Physical Chemistry A, 2018, 122 (38), pp.7748-7756. ⟨10.1021/acs.jpca.8b05357⟩. ⟨hal-02024537⟩
6 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More