Evidence map›Paper›PMID 38351699›Full record

ArticleThe journal of physical chemistry. A2024

Particle-Breaking Unrestricted Hartree-Fock Theory for Open Molecular Systems.

Regina Paul Née Matveeva, Sarai Dery Folkestad, Bendik Støa Sannes, Ida-Marie Høyvik

Abstract read
In one paragraph

Article in The journal of physical chemistry. A, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Regina Paul Née MatveevaDepartment of Chemistry, The Norwegian University of Science and Technology, Trondheim 7491, Norway.ORCID 0000-0001-6567-3570
Sarai Dery FolkestadDepartment of Chemistry, The Norwegian University of Science and Technology, Trondheim 7491, Norway.ORCID 0000-0002-8569-4886
Bendik Støa SannesDepartment of Chemistry, The Norwegian University of Science and Technology, Trondheim 7491, Norway.ORCID 0009-0000-7797-336X
Ida-Marie HøyvikDepartment of Chemistry, The Norwegian University of Science and Technology, Trondheim 7491, Norway.ORCID 0000-0002-1239-7776

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We recently introduced the particle-breaking restricted Hartree-Fock (PBRHF) model, a mean-field approach to address the fractional charging of molecules when they interact with an electronic environment. In this paper, we present an extension of the model referred to as particle-breaking unrestricted Hartree-Fock (PBUHF). The unrestricted formulation contains odd-electron states necessary for a realistic description of fractional charging. Within the PBUHF parametrization, we use two-body operators as they yield convenient operator transformations. However, two-body operators can change only the particle number by two. Therefore, we include noninteracting zero-energy bath orbitals to generate a linear combination of even and odd electron states. Depending on whether the occupied or virtual orbitals of a molecule interact with the environment, the average number of electrons is either decreased or increased. Without interaction, PBUHF reduces to the unrestricted Hartree-Fock wave function.

Identifiers

PMID38351699
PMCPMC10910564

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.