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Cited by 494

The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.

The coupled pair functional (CPF). A size consistent modification of the CI(SD) based on an energy functional

Ahlrichs, Reinhart, Scharf, Peter, Ehrhardt, Claus·1985·The Journal of Chemical Physics

Abstract

A modification of the CI(SD) energy functional is proposed which leads to size consistency through the use of partial normalization denominators. The method is derived from simple principles: correct description of separated two-electron systems and certain invariance requirements. This approach is connected to CEPA-1. The theoretical framework allows for a simple rationalization of connections between CI(SD), CEPA-1, and the linear version of CP–MET. As demonstrative applications we report comparisons with full CI calculations for BH, NH3, H2O, HF, and Re, De for F2, N2, O2, Cl2, NO, and CO obtained for very large basis sets.

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Crossref · 10.1063/1.448517

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Metadata

Authors
Ahlrichs, R., Scharf, P., & Ehrhardt, C.
Venue
The Journal of Chemical Physics
Published
1985-01-15
Volume
82
Issue
2
Pages
890-898
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W2090912545
Cited by
494
References
24
FWCI
32.18
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: The coupled pair functional (CPF). A size consistent modification of the CI(SD) based on an energy functional. https://app.cochat.ai/papers/10.1063/1.448517
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Ahlrichs, R., Scharf, P., & Ehrhardt, C. (1985). The coupled pair functional (CPF). A size consistent modification of the CI(SD) based on an energy functional. The Journal of Chemical Physics. https://doi.org/10.1063/1.448517

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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.