Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups

Autores
Lazaro Martinez, Juan Manuel; Monti, Gustavo Alberto; Chattah, Ana Karina
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, we describe the Cu2+ ion uptake from recently developed hydrogel with polyampholyte and polyelectrolyte behavior at different concentrations of the metal ion. Solid-state NMR and EPR were used as complementary techniques to understand the coordination role of carboxylic acid and azole groups (imidazole, triazole and pyrazole) involved in the copper ion coordination. In polymers containing imidazole and triazole, the uptake took place preferentially through the azole groups, with less participation of the carboxylate groups at low concentrations of Cu2+. However, as the concentration of Cu2+ increased, these azole ligands became less active in the new sites for copper. In polymers containing pyrazole, coordination of Cu2+ was through both carboxylate and pyrazole ligands, regardless of the concentration of Cu2+ . Interactions of the different ligands in the networks and the structural changes produced by copper ions (Cu1+, Cu2+) were characterized by thermal and NMR measurements.
Fil: Lazaro Martinez, Juan Manuel. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; Argentina
Fil: Monti, Gustavo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; Argentina
Fil: Chattah, Ana Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; Argentina
Materia
Ss-Nmr
Epr
Copper Complexes
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:11336/1834
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/1834
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groupsLazaro Martinez, Juan ManuelMonti, Gustavo AlbertoChattah, Ana KarinaSs-NmrEprCopper Complexeshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work, we describe the Cu2+ ion uptake from recently developed hydrogel with polyampholyte and polyelectrolyte behavior at different concentrations of the metal ion. Solid-state NMR and EPR were used as complementary techniques to understand the coordination role of carboxylic acid and azole groups (imidazole, triazole and pyrazole) involved in the copper ion coordination. In polymers containing imidazole and triazole, the uptake took place preferentially through the azole groups, with less participation of the carboxylate groups at low concentrations of Cu2+. However, as the concentration of Cu2+ increased, these azole ligands became less active in the new sites for copper. In polymers containing pyrazole, coordination of Cu2+ was through both carboxylate and pyrazole ligands, regardless of the concentration of Cu2+ . Interactions of the different ligands in the networks and the structural changes produced by copper ions (Cu1+, Cu2+) were characterized by thermal and NMR measurements.Fil: Lazaro Martinez, Juan Manuel. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; ArgentinaFil: Monti, Gustavo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; ArgentinaFil: Chattah, Ana Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; ArgentinaElsevier2013-08-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/1834Lazaro Martinez, Juan Manuel; Monti, Gustavo Alberto; Chattah, Ana Karina; Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups; Elsevier; Polymer; 54; 19; 23-8-2013; 5214-52210032-3861enginfo:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.polymer.2013.07.036info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:15:03Zoai:ri.conicet.gov.ar:11336/1834instacron: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:34982025-09-10 13:15:03.681CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
title Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
spellingShingle Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
Lazaro Martinez, Juan Manuel
Ss-Nmr
Epr
Copper Complexes
title_short Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
title_full Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
title_fullStr Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
title_full_unstemmed Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
title_sort Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups
dc.creator.none.fl_str_mv Lazaro Martinez, Juan Manuel
Monti, Gustavo Alberto
Chattah, Ana Karina
author Lazaro Martinez, Juan Manuel
author_facet Lazaro Martinez, Juan Manuel
Monti, Gustavo Alberto
Chattah, Ana Karina
author_role author
author2 Monti, Gustavo Alberto
Chattah, Ana Karina
author2_role author
author
dc.subject.none.fl_str_mv Ss-Nmr
Epr
Copper Complexes
topic Ss-Nmr
Epr
Copper Complexes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work, we describe the Cu2+ ion uptake from recently developed hydrogel with polyampholyte and polyelectrolyte behavior at different concentrations of the metal ion. Solid-state NMR and EPR were used as complementary techniques to understand the coordination role of carboxylic acid and azole groups (imidazole, triazole and pyrazole) involved in the copper ion coordination. In polymers containing imidazole and triazole, the uptake took place preferentially through the azole groups, with less participation of the carboxylate groups at low concentrations of Cu2+. However, as the concentration of Cu2+ increased, these azole ligands became less active in the new sites for copper. In polymers containing pyrazole, coordination of Cu2+ was through both carboxylate and pyrazole ligands, regardless of the concentration of Cu2+ . Interactions of the different ligands in the networks and the structural changes produced by copper ions (Cu1+, Cu2+) were characterized by thermal and NMR measurements.
Fil: Lazaro Martinez, Juan Manuel. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; Argentina
Fil: Monti, Gustavo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; Argentina
Fil: Chattah, Ana Karina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET - Córdoba. Instituto de Fisica Enrique Gaviola; Argentina
description In this work, we describe the Cu2+ ion uptake from recently developed hydrogel with polyampholyte and polyelectrolyte behavior at different concentrations of the metal ion. Solid-state NMR and EPR were used as complementary techniques to understand the coordination role of carboxylic acid and azole groups (imidazole, triazole and pyrazole) involved in the copper ion coordination. In polymers containing imidazole and triazole, the uptake took place preferentially through the azole groups, with less participation of the carboxylate groups at low concentrations of Cu2+. However, as the concentration of Cu2+ increased, these azole ligands became less active in the new sites for copper. In polymers containing pyrazole, coordination of Cu2+ was through both carboxylate and pyrazole ligands, regardless of the concentration of Cu2+ . Interactions of the different ligands in the networks and the structural changes produced by copper ions (Cu1+, Cu2+) were characterized by thermal and NMR measurements.
publishDate 2013
dc.date.none.fl_str_mv 2013-08-23
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/11336/1834
Lazaro Martinez, Juan Manuel; Monti, Gustavo Alberto; Chattah, Ana Karina; Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups; Elsevier; Polymer; 54; 19; 23-8-2013; 5214-5221
0032-3861
url http://hdl.handle.net/11336/1834
identifier_str_mv Lazaro Martinez, Juan Manuel; Monti, Gustavo Alberto; Chattah, Ana Karina; Insights into the coordination sphere of copper ion in polymers containing carboxylic acid and azole groups; Elsevier; Polymer; 54; 19; 23-8-2013; 5214-5221
0032-3861
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.polymer.2013.07.036
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 Elsevier
publisher.none.fl_str_mv Elsevier
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_ 1842980809357656064
score 12.993085

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