Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 284

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Experimental Observation of Pentaatomic Tetracoordinate Planar Carbon-Containing Molecules

Wang, Lai-Sheng, Boldyrev, Alexander I., Li, Xi, Simons, Jack·2000·Journal of the American Chemical Society

Abstract

The first neutral pentaatomic tetracoordinate planar carbon molecules, CAl 3 Si and CAl 3 Ge, as well as their anions, CAl 3 Si - and CAl 3 Ge -, were experimentally observed in the gas-phase and characterized by ab initio calculations and anion photoelectron spectroscopy. A four-center bond involving ligand−ligand interactions was found to be critical in stabilizing the planar structures of the 17-valence-electron CAl 3 Si and CAl 3 Ge and 18-valence-electron CAl 3 Si - and CAl 3 Ge - . These species violate the conventional expectation of tetrahedral structure for tetracoordinate carbon atoms and thus extend our concept of the range of chemical bonds that carbon can form.

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 · 10.1021/ja993081b

Cites

1 of 1 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 1 references

Cited by

See all 284

Metadata

Authors
Wang, L.-S., Boldyrev, A. I., Li, X., & Simons, J.
Venue
Journal of the American Chemical Society
Published
2000-07-28
Volume
122
Issue
32
Pages
7681-7687
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2142246857
Cited by
284
References
1
FWCI
5.37
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: Experimental Observation of Pentaatomic Tetracoordinate Planar Carbon-Containing Molecules. https://app.cochat.ai/papers/10.1021/ja993081b
The paper
Wang, L.-S., Boldyrev, A. I., Li, X., & Simons, J. (2000). Experimental Observation of Pentaatomic Tetracoordinate Planar Carbon-Containing Molecules. Journal of the American Chemical Society. https://doi.org/10.1021/ja993081b

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.