Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2
- Autores
- Cobos, Carlos Jorge; Sölter, L.; Tellbach, E.; Troe, J.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The thermal dissociation of c-C3F6 has been studied in shock waves over the range 620–1030 K monitoring the UV absorption of CF2. The reaction was studied close to its high-pressure limit, but some high-temperature falloff was accounted for. Quantum-chemical and kinetic modeling rationalized the experimental data. The reaction is suggested to involve the 1,3 biradical CF2CF2CF2 intermediate. CF2 formed by the dissociation of c-C3F6 dimerizes to C2F4. The measured rate of this reaction is also found to correspond to the falloff range. Rate constants for 2CF2 → C2F4 as a function of temperature and bath gas concentration [Ar] are given and shown to be consistent with literature values for the high-pressure rate constants from experiments at lower temperatures and dissociation rate constants obtained in the falloff range at higher temperatures. The onset of falloff at intermediate temperatures is analyzed.
Fil: Cobos, Carlos Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina
Fil: Sölter, L.. Universitat of Gottingen; Alemania
Fil: Tellbach, E.. Universitat of Gottingen; Alemania
Fil: Troe, J.. Max-Planck-Institut für Biophysikalische Chemie; Alemania - Materia
-
Unimolecular Reactions
Dissociations Reaction
Dimerization Reactions
Fluorocarbons - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/5220
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3498 |
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spelling |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2Cobos, Carlos JorgeSölter, L.Tellbach, E.Troe, J.Unimolecular ReactionsDissociations ReactionDimerization ReactionsFluorocarbonshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The thermal dissociation of c-C3F6 has been studied in shock waves over the range 620–1030 K monitoring the UV absorption of CF2. The reaction was studied close to its high-pressure limit, but some high-temperature falloff was accounted for. Quantum-chemical and kinetic modeling rationalized the experimental data. The reaction is suggested to involve the 1,3 biradical CF2CF2CF2 intermediate. CF2 formed by the dissociation of c-C3F6 dimerizes to C2F4. The measured rate of this reaction is also found to correspond to the falloff range. Rate constants for 2CF2 → C2F4 as a function of temperature and bath gas concentration [Ar] are given and shown to be consistent with literature values for the high-pressure rate constants from experiments at lower temperatures and dissociation rate constants obtained in the falloff range at higher temperatures. The onset of falloff at intermediate temperatures is analyzed.Fil: Cobos, Carlos Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; ArgentinaFil: Sölter, L.. Universitat of Gottingen; AlemaniaFil: Tellbach, E.. Universitat of Gottingen; AlemaniaFil: Troe, J.. Max-Planck-Institut für Biophysikalische Chemie; AlemaniaAmerican Chemical Society2014-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5220Cobos, Carlos Jorge; Sölter, L.; Tellbach, E.; Troe, J.; Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2; American Chemical Society; Journal Of Physical Chemistry A; 118; 27; 6-2014; 4873-48791089-5639enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp501577kinfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp501577kinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:31Zoai:ri.conicet.gov.ar:11336/5220instacron: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:34982025-09-29 09:36:32.11CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
title |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
spellingShingle |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 Cobos, Carlos Jorge Unimolecular Reactions Dissociations Reaction Dimerization Reactions Fluorocarbons |
title_short |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
title_full |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
title_fullStr |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
title_full_unstemmed |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
title_sort |
Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2 |
dc.creator.none.fl_str_mv |
Cobos, Carlos Jorge Sölter, L. Tellbach, E. Troe, J. |
author |
Cobos, Carlos Jorge |
author_facet |
Cobos, Carlos Jorge Sölter, L. Tellbach, E. Troe, J. |
author_role |
author |
author2 |
Sölter, L. Tellbach, E. Troe, J. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Unimolecular Reactions Dissociations Reaction Dimerization Reactions Fluorocarbons |
topic |
Unimolecular Reactions Dissociations Reaction Dimerization Reactions Fluorocarbons |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The thermal dissociation of c-C3F6 has been studied in shock waves over the range 620–1030 K monitoring the UV absorption of CF2. The reaction was studied close to its high-pressure limit, but some high-temperature falloff was accounted for. Quantum-chemical and kinetic modeling rationalized the experimental data. The reaction is suggested to involve the 1,3 biradical CF2CF2CF2 intermediate. CF2 formed by the dissociation of c-C3F6 dimerizes to C2F4. The measured rate of this reaction is also found to correspond to the falloff range. Rate constants for 2CF2 → C2F4 as a function of temperature and bath gas concentration [Ar] are given and shown to be consistent with literature values for the high-pressure rate constants from experiments at lower temperatures and dissociation rate constants obtained in the falloff range at higher temperatures. The onset of falloff at intermediate temperatures is analyzed. Fil: Cobos, Carlos Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional de La Plata; Argentina Fil: Sölter, L.. Universitat of Gottingen; Alemania Fil: Tellbach, E.. Universitat of Gottingen; Alemania Fil: Troe, J.. Max-Planck-Institut für Biophysikalische Chemie; Alemania |
description |
The thermal dissociation of c-C3F6 has been studied in shock waves over the range 620–1030 K monitoring the UV absorption of CF2. The reaction was studied close to its high-pressure limit, but some high-temperature falloff was accounted for. Quantum-chemical and kinetic modeling rationalized the experimental data. The reaction is suggested to involve the 1,3 biradical CF2CF2CF2 intermediate. CF2 formed by the dissociation of c-C3F6 dimerizes to C2F4. The measured rate of this reaction is also found to correspond to the falloff range. Rate constants for 2CF2 → C2F4 as a function of temperature and bath gas concentration [Ar] are given and shown to be consistent with literature values for the high-pressure rate constants from experiments at lower temperatures and dissociation rate constants obtained in the falloff range at higher temperatures. The onset of falloff at intermediate temperatures is analyzed. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06 |
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/11336/5220 Cobos, Carlos Jorge; Sölter, L.; Tellbach, E.; Troe, J.; Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2; American Chemical Society; Journal Of Physical Chemistry A; 118; 27; 6-2014; 4873-4879 1089-5639 |
url |
http://hdl.handle.net/11336/5220 |
identifier_str_mv |
Cobos, Carlos Jorge; Sölter, L.; Tellbach, E.; Troe, J.; Shock Wave Study of the Thermal Dissociations of C3F6 and c-C3F6. II. Dissociation of Hexafluorocyclopropane and Dimerization of CF2; American Chemical Society; Journal Of Physical Chemistry A; 118; 27; 6-2014; 4873-4879 1089-5639 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/ info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/jp501577k info:eu-repo/semantics/altIdentifier/doi/10.1021/jp501577k |
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 |
dc.publisher.none.fl_str_mv |
American Chemical Society |
publisher.none.fl_str_mv |
American Chemical Society |
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_ |
1844613146391609344 |
score |
13.070432 |