Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 215

The DOI matches its Crossref record.

An investigation of the performance of a hybrid of Hartree-Fock and density functional theory

Gill, Peter M. W., Johnson, Benny G., Pople, John A., Frisch, Michael J.·1992·International Journal of Quantum Chemistry

Abstract

We explore a hybrid methodology in which the Hartree-Fock energy and density are combined with the nonlocal exchange functional of Becke (1988) and the nonlocal correlation functional of Lee, Yang and Parr (1988) to yield an estimate of the Schrödinger total energy. The resulting mean absolute deviation from a large number of experimental atomization energies, ionization potentials, electron affinities, and proton affinities is 3.86 kcal/mol. Performance comparisons are made with the recently developed G2 theory and nonconventional interpretations of the density functionals are discussed. © 1992 John Wiley & Sons, Inc.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/qua.560440828

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 215

Metadata

Authors
Gill, P. M. W., Johnson, B. G., Pople, J. A., & Frisch, M. J.
Venue
International Journal of Quantum Chemistry
Publisher
Wiley
Published
1992-03-14
Volume
44
Issue
S26
Pages
319-331
ISSN
  • 0020-7608 (ISSN-L)
  • 1097-461X
OpenAlex
W2149798520
Cited by
215
References
0
FWCI
8.51
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: An investigation of the performance of a hybrid of Hartree-Fock and density functional theory. https://app.cochat.ai/papers/10.1002/qua.560440828
The paper
Gill, P. M. W., Johnson, B. G., Pople, J. A., & Frisch, M. J. (1992). An investigation of the performance of a hybrid of Hartree-Fock and density functional theory. International Journal of Quantum Chemistry. https://doi.org/10.1002/qua.560440828

Data sources

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.