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Natural population analysis

Reed, Alan E., Weinstock, Robert B., Weinhold, Frank·1985·The Journal of Chemical Physics

Abstract

A method of ‘‘natural population analysis’’ has been developed to calculate atomic charges and orbital populations of molecular wave functions in general atomic orbital basis sets. The natural analysis is an alternative to conventional Mulliken population analysis, and seems to exhibit improved numerical stability and to better describe the electron distribution in compounds of high ionic character, such as those containing metal atoms. We calculated ab initio SCF-MO wave functions for compounds of type CH3X and LiX (X=F, OH, NH2, CH3, BH2, BeH, Li, H) in a variety of basis sets to illustrate the generality of the method, and to compare the natural populations with results of Mulliken analysis, density integration, and empirical measures of ionic character. Natural populations are found to give a satisfactory description of these molecules, providing a unified treatment of covalent and extreme ionic limits at modest computational cost.

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Metadata

Authors
Reed, A. E., Weinstock, R. B., & Weinhold, F.
Venue
The Journal of Chemical Physics
Published
1985-07-15
Volume
83
Issue
2
Pages
735-746
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W1993383767
Cited by
9,925
References
0
FWCI
7.39
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Natural population analysis. https://app.cochat.ai/papers/10.1063/1.449486
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Reed, A. E., Weinstock, R. B., & Weinhold, F. (1985). Natural population analysis. The Journal of Chemical Physics. https://doi.org/10.1063/1.449486

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