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Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface
In Surface-Aligned-Reactions (SAR), the degrees of freedom of chemical reactions are restricted and therefore the reaction outcome is selected. Using the inherent corrugation of a Cu(110) substrate the adsorbate molecules can be positioned and aligned and the impact parameter, the collision miss-dis...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9814886/ https://www.ncbi.nlm.nih.gov/pubmed/36697691 http://dx.doi.org/10.1038/s42004-021-00453-x |
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author | Timm, Matthew J. Leung, Lydie Anggara, Kelvin Polanyi, John C. |
author_facet | Timm, Matthew J. Leung, Lydie Anggara, Kelvin Polanyi, John C. |
author_sort | Timm, Matthew J. |
collection | PubMed |
description | In Surface-Aligned-Reactions (SAR), the degrees of freedom of chemical reactions are restricted and therefore the reaction outcome is selected. Using the inherent corrugation of a Cu(110) substrate the adsorbate molecules can be positioned and aligned and the impact parameter, the collision miss-distance, can be chosen. Here, substitution reaction for a zero impact parameter collision gives an outcome which resembles the classic Newton’s cradle in which an incident mass ‘knocks-on’ the same mass in the collision partner, here F + CF(3) → (CF(3))′ + (F)′ at a copper surface. The mechanism of knock-on was shown by Scanning Tunnelling Microscopy to involve reversal of the CF(3) umbrella as in Walden inversion, with ejection of (F)′ product along the continuation of the F-reagent direction of motion, in collinear reaction. |
format | Online Article Text |
id | pubmed-9814886 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-98148862023-01-10 Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface Timm, Matthew J. Leung, Lydie Anggara, Kelvin Polanyi, John C. Commun Chem Article In Surface-Aligned-Reactions (SAR), the degrees of freedom of chemical reactions are restricted and therefore the reaction outcome is selected. Using the inherent corrugation of a Cu(110) substrate the adsorbate molecules can be positioned and aligned and the impact parameter, the collision miss-distance, can be chosen. Here, substitution reaction for a zero impact parameter collision gives an outcome which resembles the classic Newton’s cradle in which an incident mass ‘knocks-on’ the same mass in the collision partner, here F + CF(3) → (CF(3))′ + (F)′ at a copper surface. The mechanism of knock-on was shown by Scanning Tunnelling Microscopy to involve reversal of the CF(3) umbrella as in Walden inversion, with ejection of (F)′ product along the continuation of the F-reagent direction of motion, in collinear reaction. Nature Publishing Group UK 2021-02-12 /pmc/articles/PMC9814886/ /pubmed/36697691 http://dx.doi.org/10.1038/s42004-021-00453-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Timm, Matthew J. Leung, Lydie Anggara, Kelvin Polanyi, John C. Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
title | Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
title_full | Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
title_fullStr | Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
title_full_unstemmed | Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
title_short | Direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
title_sort | direct observation of knock-on reaction with umbrella inversion arising from zero-impact-parameter collision at a surface |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9814886/ https://www.ncbi.nlm.nih.gov/pubmed/36697691 http://dx.doi.org/10.1038/s42004-021-00453-x |
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