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Computed Physical Properties of Small Molecules

  • Wilfried Meyer
  • Peter Botschwina
  • Pavel Rosmus
  • Hans-Joachim Werner
Part of the The IBM Research Symposia Series book series (IRSS)

Abstract

There is no reliable intrinsic criterion which allows one to judge the quality of a computed quantum mechanical wavefunction with respect to a particular property. Even if one uses a good approximate solution of the many-electron Schrödinger equation, the numerical values of physical properties of molecules may exhibit errors which are hardly predictable from a priori arguments. This is not surprising if one considers the numerous approximations that are made even in calculations accounting for large portions of the electron correlation. The only practicable way to establish the degree of reliability of quantum chemical calculations seems to consist in systematic investigations of homologous or related molecules, where comparison with accurate experiments is possible for at least several members of a series.

Keywords

Dissociation Energy Electron Affinity Proton Affinity Potential Energy Function Molecular Polarizability 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Wilfried Meyer
    • 1
  • Peter Botschwina
    • 1
  • Pavel Rosmus
    • 2
  • Hans-Joachim Werner
    • 2
  1. 1.Fachbereich ChemieUniversität KaiserslauternKaiserslauternGermany
  2. 2.Fachbereich ChemieUniversität FrankfurtFrankfurtGermany

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