Evidence map›Paper›PMID 21526802›Full record

ArticleThe journal of physical chemistry. B2011

Application of the SCC-DFTB method to neutral and protonated water clusters and bulk water.

Puja Goyal, Marcus Elstner, Qiang Cui

Abstract read
In one paragraph

Article in The journal of physical chemistry. B, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

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0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Using Machine Learning to Greatly Accelerate Path IntegralJournal of chemical theory and computation · 2022
    Article
  5. Morphological effect of side chain on HScientific reports · 2020
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Benchmark Study of the SCC-DFTB Approach for a Biomolecular Proton Channel.Journal of chemical theory and computation · 2014
    Article
  14. Article
  15. Article
  16. Insights into the mechanism of proton transport in cytochrome c oxidase.Journal of the American Chemical Society · 2012
    Article
  17. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

3 authors.

Puja GoyalDepartment of Chemistry, University of Wisconsin, Madison, Madison, Wisconsin 53706, United States.
Marcus Elstner
Qiang Cui

Funding

QM/MM analysis of redox driven proton pumpingR01GM084028 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI CUI, QIANG · 2009 to 2010
$550k
NIGMS NIH HHS R01 GM084028NIGMS NIH HHS R01-GM084028
6 · The paper itself

Abstract

The self-consistent charge density functional tight-binding (SCC-DFTB) method has been actively employed to study proton-transfer processes in biological systems. Recent studies in the literature employing SCC-DFTB reported that the method favors the Zundel form of the hydrated proton over the Eigen form, both in gas-phase water clusters and in bulk water, in disagreement with both higher-level calculations and experimental data. In this work, we explore the performance of SCC-DFTB for protonated gas-phase water clusters and bulk water (the latter both with and without an excess proton) with a modified O-H repulsive potential reported in our earlier work and with on-site third-order expansion of the DFT energy. Our results show that, with the proper set of published parameters, SCC-DFTB does correctly favor the Eigen form of the hydrated proton as compared to the Zundel form, both in gas-phase clusters and in the bulk; the amphiphilic character of the hydrated proton discussed in the literature has also been observed. The analyses do, however, bring forth remaining limitations in terms of the solvation structure around the hydrated proton as well as the structure of bulk water, which can guide future improvements of the method.

Indexed as

DimerizationModels, MolecularProtonsQuantum TheoryThermodynamicsWaterProtonsWater

Identifiers

PMID21526802
PMCPMC3101025

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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.