Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 1,047

The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.

Extension of Gaussian-2 (G2) theory to molecules containing third-row atoms K and Ca

Blaudeau, Jean-Philippe, McGrath, Mark P., Curtiss, Larry A., Radom, Leo·1997·The Journal of Chemical Physics

Abstract

Gaussian-2 (G2) theory has been extended to molecules containing the third-row nontransition elements K and Ca. Basis sets compatible with those used in G2 theory for molecules containing first- and second-row atoms, as well as the third-row elements Ga–Kr, have been derived. As for Ga–Kr, first-order spin–orbit corrections are included explicitly in the G2 energies of K- and Ca-containing atoms and molecules. In contrast to the procedure for Ga–Kr, the 3s and 3p orbitals need to be included in the correlation space for K- and Ca-containing molecules. The geometries obtained with the new basis sets are in satisfactory agreement with experiment. Assessment of the thermochemical predictions is limited because of the sparsity of accurate experimental data for molecules containing K and Ca. Ionization energies are generally in good agreement with experimental values, as are the atomization energies for K-containing molecules. However, there are larger differences between theoretical and experimental atomization energies for Ca-containing molecules.

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 · 10.1063/1.474865

Cites

29 of 29 references verified0 citation errors · 0 not checkable

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

Cites

Show all 29 references

Cited by

See all 1,047

Metadata

Authors
Blaudeau, J.-P., McGrath, M. P., Curtiss, L. A., & Radom, L.
Venue
The Journal of Chemical Physics
Published
1997-10-01
Volume
107
Issue
13
Pages
5016-5021
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W2077805528
Cited by
1,047
References
29
FWCI
8.02
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: Extension of Gaussian-2 (G2) theory to molecules containing third-row atoms K and Ca. https://app.cochat.ai/papers/10.1063/1.474865
The paper
Blaudeau, J.-P., McGrath, M. P., Curtiss, L. A., & Radom, L. (1997). Extension of Gaussian-2 (G2) theory to molecules containing third-row atoms K and Ca. The Journal of Chemical Physics. https://doi.org/10.1063/1.474865

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.