One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation
- Autores
- Villata, Laura S.; Berkovic, Andrea Mariela; Gonzalez, Monica Cristina; Martire, Daniel Osvaldo
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The values of the bimolecular rate constants for the reactions of 2,2′-azino-bis(3-ethylbenz-thiazoline-6-sulfonic acid) radical cation with epicatechin (((2.4±0.2)) s−1 M−1), and epigallocatechingallate ((29±5) s−1 M−1) were obtained by spectrophotometric measurements. We propose a correlation between the Gibbs energy ΔGo for the one-electron charge-transfer reactions from several antioxidants to radical species and the rate constants of the corresponding bimolecular reactions. This correlation can be used to predict rate constants of reactions of known ΔGo values.
Fil: Villata, Laura S.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Berkovic, Andrea Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina
Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina - Materia
-
Abts
Antioxidants
Epicatechin
Epigallocatechingallate - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/5237
Ver los metadatos del registro completo
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One-electron oxidation of antioxidants: A kinetic-thermodynamic correlationVillata, Laura S.Berkovic, Andrea MarielaGonzalez, Monica CristinaMartire, Daniel OsvaldoAbtsAntioxidantsEpicatechinEpigallocatechingallatehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The values of the bimolecular rate constants for the reactions of 2,2′-azino-bis(3-ethylbenz-thiazoline-6-sulfonic acid) radical cation with epicatechin (((2.4±0.2)) s−1 M−1), and epigallocatechingallate ((29±5) s−1 M−1) were obtained by spectrophotometric measurements. We propose a correlation between the Gibbs energy ΔGo for the one-electron charge-transfer reactions from several antioxidants to radical species and the rate constants of the corresponding bimolecular reactions. This correlation can be used to predict rate constants of reactions of known ΔGo values.Fil: Villata, Laura S.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Berkovic, Andrea Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; ArgentinaFil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaTaylor & Francis2013-03info: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/11336/5237Villata, Laura S.; Berkovic, Andrea Mariela; Gonzalez, Monica Cristina; Martire, Daniel Osvaldo; One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation; Taylor & Francis; Redox Report; 18; 5; 3-2013; 205-2091351-0002enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/url/http://www.tandfonline.com/doi/full/10.1179/1351000213Y.0000000063info:eu-repo/semantics/altIdentifier/doi/10.1179/1351000213Y.0000000063info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:29:04Zoai:ri.conicet.gov.ar:11336/5237instacron: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 10:29:04.96CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
title |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
spellingShingle |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation Villata, Laura S. Abts Antioxidants Epicatechin Epigallocatechingallate |
title_short |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
title_full |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
title_fullStr |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
title_full_unstemmed |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
title_sort |
One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation |
dc.creator.none.fl_str_mv |
Villata, Laura S. Berkovic, Andrea Mariela Gonzalez, Monica Cristina Martire, Daniel Osvaldo |
author |
Villata, Laura S. |
author_facet |
Villata, Laura S. Berkovic, Andrea Mariela Gonzalez, Monica Cristina Martire, Daniel Osvaldo |
author_role |
author |
author2 |
Berkovic, Andrea Mariela Gonzalez, Monica Cristina Martire, Daniel Osvaldo |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Abts Antioxidants Epicatechin Epigallocatechingallate |
topic |
Abts Antioxidants Epicatechin Epigallocatechingallate |
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 values of the bimolecular rate constants for the reactions of 2,2′-azino-bis(3-ethylbenz-thiazoline-6-sulfonic acid) radical cation with epicatechin (((2.4±0.2)) s−1 M−1), and epigallocatechingallate ((29±5) s−1 M−1) were obtained by spectrophotometric measurements. We propose a correlation between the Gibbs energy ΔGo for the one-electron charge-transfer reactions from several antioxidants to radical species and the rate constants of the corresponding bimolecular reactions. This correlation can be used to predict rate constants of reactions of known ΔGo values. Fil: Villata, Laura S.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Berkovic, Andrea Mariela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Fisica Arroyo Seco; Argentina Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina |
description |
The values of the bimolecular rate constants for the reactions of 2,2′-azino-bis(3-ethylbenz-thiazoline-6-sulfonic acid) radical cation with epicatechin (((2.4±0.2)) s−1 M−1), and epigallocatechingallate ((29±5) s−1 M−1) were obtained by spectrophotometric measurements. We propose a correlation between the Gibbs energy ΔGo for the one-electron charge-transfer reactions from several antioxidants to radical species and the rate constants of the corresponding bimolecular reactions. This correlation can be used to predict rate constants of reactions of known ΔGo values. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03 |
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/11336/5237 Villata, Laura S.; Berkovic, Andrea Mariela; Gonzalez, Monica Cristina; Martire, Daniel Osvaldo; One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation; Taylor & Francis; Redox Report; 18; 5; 3-2013; 205-209 1351-0002 |
url |
http://hdl.handle.net/11336/5237 |
identifier_str_mv |
Villata, Laura S.; Berkovic, Andrea Mariela; Gonzalez, Monica Cristina; Martire, Daniel Osvaldo; One-electron oxidation of antioxidants: A kinetic-thermodynamic correlation; Taylor & Francis; Redox Report; 18; 5; 3-2013; 205-209 1351-0002 |
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://www.tandfonline.com/doi/full/10.1179/1351000213Y.0000000063 info:eu-repo/semantics/altIdentifier/doi/10.1179/1351000213Y.0000000063 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis |
publisher.none.fl_str_mv |
Taylor & Francis |
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 |
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1844614296157290496 |
score |
13.070432 |