Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species

Autores
Collins, Sebastián Enrique; Briand, Laura Estefania; Matkovic, Silvana Raquel; Bonivardi, Adrian Lionel
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The mechanism of adsorption and decomposition of acetic anhydride over phosphotungstic Wells-Dawson heteropoly acid (HPA) was investigated through infrared spectroscopy with especially dedicated in situ cells. Both gaseous and liquid acetic anhydride dissociatively chemisorbs on the heteropoly acid, producing the intermediate acyl CH3CO+ species, adsorbed acetate species, and acetic acid. The former is known as the key intermediate species in the Friedel-Crafts acylation reaction. Moreover, the consumption of the Brønsted acid sites observed during the adsorption and decomposition of acetic anhydride over the HPA indicates that those sites are the active ones of the genesis of the acyl intermediate species. Surface acetate species and acetic acid strongly adsorb on the active acid sites deactivating the heteropoly acid.
Fil: Collins, Sebastián Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Briand, Laura Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Matkovic, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación para la Industria Química (i); Argentina
Materia
Wells-Dawson
Acid
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:11336/3157
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/3157
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive speciesCollins, Sebastián EnriqueBriand, Laura EstefaniaMatkovic, Silvana RaquelBonivardi, Adrian LionelWells-DawsonAcidhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The mechanism of adsorption and decomposition of acetic anhydride over phosphotungstic Wells-Dawson heteropoly acid (HPA) was investigated through infrared spectroscopy with especially dedicated in situ cells. Both gaseous and liquid acetic anhydride dissociatively chemisorbs on the heteropoly acid, producing the intermediate acyl CH3CO+ species, adsorbed acetate species, and acetic acid. The former is known as the key intermediate species in the Friedel-Crafts acylation reaction. Moreover, the consumption of the Brønsted acid sites observed during the adsorption and decomposition of acetic anhydride over the HPA indicates that those sites are the active ones of the genesis of the acyl intermediate species. Surface acetate species and acetic acid strongly adsorb on the active acid sites deactivating the heteropoly acid.Fil: Collins, Sebastián Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Briand, Laura Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Matkovic, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación para la Industria Química (i); ArgentinaAmerican Chemical Society2011-01-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/3157Collins, Sebastián Enrique; Briand, Laura Estefania; Matkovic, Silvana Raquel; Bonivardi, Adrian Lionel; Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species; American Chemical Society; Journal of Physical Chemistry C; 115; 3; 27-1-2011; 700-7091932-7447enginfo:eu-repo/semantics/altIdentifier/doi/10.1021/jp108031hinfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp108031hinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:27:59Zoai:ri.conicet.gov.ar:11336/3157instacron: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 10:27:59.456CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
title Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
spellingShingle Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
Collins, Sebastián Enrique
Wells-Dawson
Acid
title_short Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
title_full Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
title_fullStr Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
title_full_unstemmed Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
title_sort Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species
dc.creator.none.fl_str_mv Collins, Sebastián Enrique
Briand, Laura Estefania
Matkovic, Silvana Raquel
Bonivardi, Adrian Lionel
author Collins, Sebastián Enrique
author_facet Collins, Sebastián Enrique
Briand, Laura Estefania
Matkovic, Silvana Raquel
Bonivardi, Adrian Lionel
author_role author
author2 Briand, Laura Estefania
Matkovic, Silvana Raquel
Bonivardi, Adrian Lionel
author2_role author
author
author
dc.subject.none.fl_str_mv Wells-Dawson
Acid
topic Wells-Dawson
Acid
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 mechanism of adsorption and decomposition of acetic anhydride over phosphotungstic Wells-Dawson heteropoly acid (HPA) was investigated through infrared spectroscopy with especially dedicated in situ cells. Both gaseous and liquid acetic anhydride dissociatively chemisorbs on the heteropoly acid, producing the intermediate acyl CH3CO+ species, adsorbed acetate species, and acetic acid. The former is known as the key intermediate species in the Friedel-Crafts acylation reaction. Moreover, the consumption of the Brønsted acid sites observed during the adsorption and decomposition of acetic anhydride over the HPA indicates that those sites are the active ones of the genesis of the acyl intermediate species. Surface acetate species and acetic acid strongly adsorb on the active acid sites deactivating the heteropoly acid.
Fil: Collins, Sebastián Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Briand, Laura Estefania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Matkovic, Silvana Raquel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Bonivardi, Adrian Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta. Instituto de Investigación para la Industria Química (i); Argentina
description The mechanism of adsorption and decomposition of acetic anhydride over phosphotungstic Wells-Dawson heteropoly acid (HPA) was investigated through infrared spectroscopy with especially dedicated in situ cells. Both gaseous and liquid acetic anhydride dissociatively chemisorbs on the heteropoly acid, producing the intermediate acyl CH3CO+ species, adsorbed acetate species, and acetic acid. The former is known as the key intermediate species in the Friedel-Crafts acylation reaction. Moreover, the consumption of the Brønsted acid sites observed during the adsorption and decomposition of acetic anhydride over the HPA indicates that those sites are the active ones of the genesis of the acyl intermediate species. Surface acetate species and acetic acid strongly adsorb on the active acid sites deactivating the heteropoly acid.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-27
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/11336/3157
Collins, Sebastián Enrique; Briand, Laura Estefania; Matkovic, Silvana Raquel; Bonivardi, Adrian Lionel; Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species; American Chemical Society; Journal of Physical Chemistry C; 115; 3; 27-1-2011; 700-709
1932-7447
url http://hdl.handle.net/11336/3157
identifier_str_mv Collins, Sebastián Enrique; Briand, Laura Estefania; Matkovic, Silvana Raquel; Bonivardi, Adrian Lionel; Acylating capacity of the phosphotungstic Wells-Dawson heteropoly acid: Intermediate reactive species; American Chemical Society; Journal of Physical Chemistry C; 115; 3; 27-1-2011; 700-709
1932-7447
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/jp108031h
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/jp108031h
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_ 1844614282727129088
score 13.070432

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