Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2
| Main Author: | |
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| Publication Date: | 2022 |
| Other Authors: | , , , , , , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
| Download full: | http://hdl.handle.net/10362/134194 |
Summary: | P30332 153377/2016‐0 304571/2018‐0 PTDC/FIS‐AQM/31215/2017 PD/00193/2012 UID/FIS/00068/2020 PD/BD/142768/2018 |
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Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2dissociative electron attachmentelectron carrier moleculeselectron scatteringquantum chemistryubiquinoneAtomic and Molecular Physics, and OpticsPhysical and Theoretical ChemistryP30332 153377/2016‐0 304571/2018‐0 PTDC/FIS‐AQM/31215/2017 PD/00193/2012 UID/FIS/00068/2020 PD/BD/142768/2018Ubiquinone molecules have a high biological relevance due to their action as electron carriers in the mitochondrial electron transport chain. Here, we studied the dissociative interaction of free electrons with CoQ0, the smallest ubiquinone derivative with no isoprenyl units, and its fully reduced form, 2,3-dimethoxy-5-methylhydroquinone (CoQ0H2), an ubiquinol derivative. The anionic products produced upon dissociative electron attachment (DEA) were detected by quadrupole mass spectrometry and studied theoretically through quantum chemical and electron scattering calculations. Despite the structural similarity of the two studied molecules, remarkably only a few DEA reactions are present for both compounds, such as abstraction of a neutral hydrogen atom or the release of a negatively charged methyl group. While the loss of a neutral methyl group represents the most abundant reaction observed in DEA to CoQ0, this pathway is not observed for CoQ0H2. Instead, the loss of a neutral OH radical from the CoQ0H2 temporary negative ion is observed as the most abundant reaction channel. Overall, this study gives insights into electron attachment properties of simple derivatives of more complex molecules found in biochemical pathways.CeFITec – Centro de Física e Investigação TecnológicaDF – Departamento de FísicaRUNAmeixa, JoãoArthur-Baidoo, EugenePereira-da-Silva, JoãoRuivo, Júlio CésarVarella, Márcio T. do N.Beyer, Martin K.Ončák, MilanFerreira da Silva, FilipeDenifl, Stephan2022-03-09T23:25:07Z2022-03-042022-03-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/134194eng1439-4235PURE: 42112179https://doi.org/10.1002/cphc.202100834info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T18:00:02Zoai:run.unl.pt:10362/134194Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:30:56.759273Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
| dc.title.none.fl_str_mv |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| title |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| spellingShingle |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 Ameixa, João dissociative electron attachment electron carrier molecules electron scattering quantum chemistry ubiquinone Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry |
| title_short |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| title_full |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| title_fullStr |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| title_full_unstemmed |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| title_sort |
Formation of Temporary Negative Ions and Their Subsequent Fragmentation upon Electron Attachment to CoQ0 and CoQ0H2 |
| author |
Ameixa, João |
| author_facet |
Ameixa, João Arthur-Baidoo, Eugene Pereira-da-Silva, João Ruivo, Júlio César Varella, Márcio T. do N. Beyer, Martin K. Ončák, Milan Ferreira da Silva, Filipe Denifl, Stephan |
| author_role |
author |
| author2 |
Arthur-Baidoo, Eugene Pereira-da-Silva, João Ruivo, Júlio César Varella, Márcio T. do N. Beyer, Martin K. Ončák, Milan Ferreira da Silva, Filipe Denifl, Stephan |
| author2_role |
author author author author author author author author |
| dc.contributor.none.fl_str_mv |
CeFITec – Centro de Física e Investigação Tecnológica DF – Departamento de Física RUN |
| dc.contributor.author.fl_str_mv |
Ameixa, João Arthur-Baidoo, Eugene Pereira-da-Silva, João Ruivo, Júlio César Varella, Márcio T. do N. Beyer, Martin K. Ončák, Milan Ferreira da Silva, Filipe Denifl, Stephan |
| dc.subject.por.fl_str_mv |
dissociative electron attachment electron carrier molecules electron scattering quantum chemistry ubiquinone Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry |
| topic |
dissociative electron attachment electron carrier molecules electron scattering quantum chemistry ubiquinone Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry |
| description |
P30332 153377/2016‐0 304571/2018‐0 PTDC/FIS‐AQM/31215/2017 PD/00193/2012 UID/FIS/00068/2020 PD/BD/142768/2018 |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022-03-09T23:25:07Z 2022-03-04 2022-03-04T00:00:00Z |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
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publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/134194 |
| url |
http://hdl.handle.net/10362/134194 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
1439-4235 PURE: 42112179 https://doi.org/10.1002/cphc.202100834 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia instacron:RCAAP |
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FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
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RCAAP |
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RCAAP |
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Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
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Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
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Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia |
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info@rcaap.pt |
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