Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package
Many discussions of the intermolecular interactions in crystal structures concentrate almost exclusively on an analysis of hydrogen bonding. A simple analysis of atom–atom distances is all that is required to detect and analyse hydrogen bonding. However, for typical small-molecule organic crystal st...
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ftpubmed:oai:pubmedcentral.nih.gov:8493623 2023-05-15T17:53:26+02:00 Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package McArdle, Patrick 2021-09-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8493623/ http://www.ncbi.nlm.nih.gov/pubmed/34667454 https://doi.org/10.1107/S1600576721008529 en eng International Union of Crystallography http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8493623/ http://www.ncbi.nlm.nih.gov/pubmed/34667454 http://dx.doi.org/10.1107/S1600576721008529 © Patrick McArdle 2021 https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. CC-BY J Appl Crystallogr Computer Programs Text 2021 ftpubmed https://doi.org/10.1107/S1600576721008529 2021-10-24T00:26:16Z Many discussions of the intermolecular interactions in crystal structures concentrate almost exclusively on an analysis of hydrogen bonding. A simple analysis of atom–atom distances is all that is required to detect and analyse hydrogen bonding. However, for typical small-molecule organic crystal structures, hydrogen-bonding interactions are often responsible for less than 50% of the crystal lattice energy. It is more difficult to analyse intermolecular interactions based on van der Waals interactions. The Pixel program can calculate and partition intermolecular energies into Coulombic, polarization, dispersion and repulsion energies, and help put crystal structure discussions onto a rational basis. This Windows PC implementation of Pixel within the Oscail package requires minimal setup and can automatically use GAUSSIAN or Orca for the calculation of electron density. Text Orca PubMed Central (PMC) Journal of Applied Crystallography 54 5 1535 1541 |
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English |
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Computer Programs |
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Computer Programs McArdle, Patrick Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package |
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Computer Programs |
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Many discussions of the intermolecular interactions in crystal structures concentrate almost exclusively on an analysis of hydrogen bonding. A simple analysis of atom–atom distances is all that is required to detect and analyse hydrogen bonding. However, for typical small-molecule organic crystal structures, hydrogen-bonding interactions are often responsible for less than 50% of the crystal lattice energy. It is more difficult to analyse intermolecular interactions based on van der Waals interactions. The Pixel program can calculate and partition intermolecular energies into Coulombic, polarization, dispersion and repulsion energies, and help put crystal structure discussions onto a rational basis. This Windows PC implementation of Pixel within the Oscail package requires minimal setup and can automatically use GAUSSIAN or Orca for the calculation of electron density. |
format |
Text |
author |
McArdle, Patrick |
author_facet |
McArdle, Patrick |
author_sort |
McArdle, Patrick |
title |
Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package |
title_short |
Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package |
title_full |
Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package |
title_fullStr |
Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package |
title_full_unstemmed |
Pixel calculations using Orca or GAUSSIAN for electron density automated within the Oscail package |
title_sort |
pixel calculations using orca or gaussian for electron density automated within the oscail package |
publisher |
International Union of Crystallography |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8493623/ http://www.ncbi.nlm.nih.gov/pubmed/34667454 https://doi.org/10.1107/S1600576721008529 |
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Orca |
genre_facet |
Orca |
op_source |
J Appl Crystallogr |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8493623/ http://www.ncbi.nlm.nih.gov/pubmed/34667454 http://dx.doi.org/10.1107/S1600576721008529 |
op_rights |
© Patrick McArdle 2021 https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
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CC-BY |
op_doi |
https://doi.org/10.1107/S1600576721008529 |
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Journal of Applied Crystallography |
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54 |
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5 |
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1535 |
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1541 |
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1766161148260909056 |