Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation

Autores
Bava, Yanina Belén; Berrueta Martinez, Yanina; Moreno Betancourt, Angelica; Erben, Mauricio Federico; Cavasso Filho, Reinaldo L.; Della Védova, Carlos Omar; Romano, Rosana Mariel
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Gaseous 2,2,2-trifluoroethanol (TFE) is excited with synchrotron radiation between 10 and 1000 eV and the ejected electrons and positive ions are detected in coincidence. In the valence-electron energy region, the most abundant species is CH2OH+. Other fragments, including ions produced by atomic rearrangements, are also detected; the most abundant are COH+, CFH2 + and CF2H2 +. The energies of electronic transitions from C 1s, O 1s and F 1s orbitals to vacant molecular orbitals are determined. A site-specific C 1s excitation is observed. The photofragmentation mechanisms after the excitation of core-shell electrons are inferred from analysis of the shape and slope of the coincidence between two charged fragments in the bi-dimensional coincidence spectra. The spectra are dominated by islands that correspond to the coincidence of H+ with several charged fragments. One of the most important channels leads to the formation of CH2OH+ and CF3 + in a concerted mechanism.
Fil: Bava, Yanina Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Berrueta Martinez, Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Moreno Betancourt, Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Erben, Mauricio Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Cavasso Filho, Reinaldo L.. Universidade Federal Do Abc; Brasil
Fil: Della Védova, Carlos Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Romano, Rosana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Materia
Gas-Phase Reactions
Ionization Potentials
Photochemistry
Radicals
Valence Isomerization
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/39797
Acceder
id CONICETDig_8b8f27d38ec9cb4fa056063c920294a2
oai_identifier_str oai:ri.conicet.gov.ar:11336/39797
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiationBava, Yanina BelénBerrueta Martinez, YaninaMoreno Betancourt, AngelicaErben, Mauricio FedericoCavasso Filho, Reinaldo L.Della Védova, Carlos OmarRomano, Rosana MarielGas-Phase ReactionsIonization PotentialsPhotochemistryRadicalsValence Isomerizationhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Gaseous 2,2,2-trifluoroethanol (TFE) is excited with synchrotron radiation between 10 and 1000 eV and the ejected electrons and positive ions are detected in coincidence. In the valence-electron energy region, the most abundant species is CH2OH+. Other fragments, including ions produced by atomic rearrangements, are also detected; the most abundant are COH+, CFH2 + and CF2H2 +. The energies of electronic transitions from C 1s, O 1s and F 1s orbitals to vacant molecular orbitals are determined. A site-specific C 1s excitation is observed. The photofragmentation mechanisms after the excitation of core-shell electrons are inferred from analysis of the shape and slope of the coincidence between two charged fragments in the bi-dimensional coincidence spectra. The spectra are dominated by islands that correspond to the coincidence of H+ with several charged fragments. One of the most important channels leads to the formation of CH2OH+ and CF3 + in a concerted mechanism.Fil: Bava, Yanina Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; ArgentinaFil: Berrueta Martinez, Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; ArgentinaFil: Moreno Betancourt, Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; ArgentinaFil: Erben, Mauricio Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; ArgentinaFil: Cavasso Filho, Reinaldo L.. Universidade Federal Do Abc; BrasilFil: Della Védova, Carlos Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; ArgentinaFil: Romano, Rosana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; ArgentinaWiley VCH Verlag2015-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/39797Bava, Yanina Belén; Berrueta Martinez, Yanina; Moreno Betancourt, Angelica; Erben, Mauricio Federico; Cavasso Filho, Reinaldo L. ; et al.; Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation; Wiley VCH Verlag; Chemphyschem; 16; 2; 2-2015; 322-3301439-4235CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/cphc.201402669info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201402669info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:02Zoai:ri.conicet.gov.ar:11336/39797instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:48:02.525CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
title Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
spellingShingle Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
Bava, Yanina Belén
Gas-Phase Reactions
Ionization Potentials
Photochemistry
Radicals
Valence Isomerization
title_short Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
title_full Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
title_fullStr Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
title_full_unstemmed Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
title_sort Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation
dc.creator.none.fl_str_mv Bava, Yanina Belén
Berrueta Martinez, Yanina
Moreno Betancourt, Angelica
Erben, Mauricio Federico
Cavasso Filho, Reinaldo L.
Della Védova, Carlos Omar
Romano, Rosana Mariel
author Bava, Yanina Belén
author_facet Bava, Yanina Belén
Berrueta Martinez, Yanina
Moreno Betancourt, Angelica
Erben, Mauricio Federico
Cavasso Filho, Reinaldo L.
Della Védova, Carlos Omar
Romano, Rosana Mariel
author_role author
author2 Berrueta Martinez, Yanina
Moreno Betancourt, Angelica
Erben, Mauricio Federico
Cavasso Filho, Reinaldo L.
Della Védova, Carlos Omar
Romano, Rosana Mariel
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Gas-Phase Reactions
Ionization Potentials
Photochemistry
Radicals
Valence Isomerization
topic Gas-Phase Reactions
Ionization Potentials
Photochemistry
Radicals
Valence Isomerization
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Gaseous 2,2,2-trifluoroethanol (TFE) is excited with synchrotron radiation between 10 and 1000 eV and the ejected electrons and positive ions are detected in coincidence. In the valence-electron energy region, the most abundant species is CH2OH+. Other fragments, including ions produced by atomic rearrangements, are also detected; the most abundant are COH+, CFH2 + and CF2H2 +. The energies of electronic transitions from C 1s, O 1s and F 1s orbitals to vacant molecular orbitals are determined. A site-specific C 1s excitation is observed. The photofragmentation mechanisms after the excitation of core-shell electrons are inferred from analysis of the shape and slope of the coincidence between two charged fragments in the bi-dimensional coincidence spectra. The spectra are dominated by islands that correspond to the coincidence of H+ with several charged fragments. One of the most important channels leads to the formation of CH2OH+ and CF3 + in a concerted mechanism.
Fil: Bava, Yanina Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Berrueta Martinez, Yanina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Moreno Betancourt, Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Erben, Mauricio Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Cavasso Filho, Reinaldo L.. Universidade Federal Do Abc; Brasil
Fil: Della Védova, Carlos Omar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
Fil: Romano, Rosana Mariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica ; Argentina
description Gaseous 2,2,2-trifluoroethanol (TFE) is excited with synchrotron radiation between 10 and 1000 eV and the ejected electrons and positive ions are detected in coincidence. In the valence-electron energy region, the most abundant species is CH2OH+. Other fragments, including ions produced by atomic rearrangements, are also detected; the most abundant are COH+, CFH2 + and CF2H2 +. The energies of electronic transitions from C 1s, O 1s and F 1s orbitals to vacant molecular orbitals are determined. A site-specific C 1s excitation is observed. The photofragmentation mechanisms after the excitation of core-shell electrons are inferred from analysis of the shape and slope of the coincidence between two charged fragments in the bi-dimensional coincidence spectra. The spectra are dominated by islands that correspond to the coincidence of H+ with several charged fragments. One of the most important channels leads to the formation of CH2OH+ and CF3 + in a concerted mechanism.
publishDate 2015
dc.date.none.fl_str_mv 2015-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/39797
Bava, Yanina Belén; Berrueta Martinez, Yanina; Moreno Betancourt, Angelica; Erben, Mauricio Federico; Cavasso Filho, Reinaldo L. ; et al.; Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation; Wiley VCH Verlag; Chemphyschem; 16; 2; 2-2015; 322-330
1439-4235
CONICET Digital
CONICET
url http://hdl.handle.net/11336/39797
identifier_str_mv Bava, Yanina Belén; Berrueta Martinez, Yanina; Moreno Betancourt, Angelica; Erben, Mauricio Federico; Cavasso Filho, Reinaldo L. ; et al.; Ionic fragmentation mechanisms of 2,2,2-trifluoroethanol following excitation with synchrotron radiation; Wiley VCH Verlag; Chemphyschem; 16; 2; 2-2015; 322-330
1439-4235
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/cphc.201402669
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.201402669
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley VCH Verlag
publisher.none.fl_str_mv Wiley VCH Verlag
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082998954360832
score 13.22299

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