Improved chemical energy component analysis

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Abstract

An improved SCF energy decomposition scheme is proposed in which a special treatment is introduced for those "ionic" one-center electron-electron repulsion energy contributions which arise from the use of doubly filled bonding orbitals. These terms characterize the bonding pattern rather than the state of the atoms, therefore they are attributed to the bonds and are redistributed between them in accord with the bond orders. This permits one to solve the dilemma which we had with the previous decomposition schemes, and obtain very "chemical" one- and two-center energy components, characterizing well the bonding situation in different molecules.

Original languageEnglish
Pages (from-to)337-344
Number of pages8
JournalPhysical Chemistry Chemical Physics
Volume14
Issue number1
DOIs
Publication statusPublished - Jan 7 2012

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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