Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6

Autores
Santana, R. C.; Carvalho, J. F.; Vencato, I.; Napolitano, H. B.; Bortoluzzi, A. J.; Barberis, G. E.; Rapp, R. E.; Passeggi, Mario Cesar Genaro; Calvo, Rafael
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A novel dinuclear copper(II) complex with the amino acid L-arginine (L-arg), with mono and bidentate HPO42- oxoanions and an OH- anion. [Cu2(L-arg)2(mu-HPO4-O)(mu-HPO4-O,O´)(mu-OH)]-.(H3O)+.6H2O (1) was prepared and its structure was determined by X-ray diffraction methods. The two independent copper ions are in a distorted square pyramidal coordination, each bonded to one L-arginine molecule. These two Cu(L-arg) units are bridged by two monoatomic equatorial-apical oxygen ligands belonging to a monodentate hydrogenphosphate group, and to the hydroxyl group. The copper ions in the dinuclear unit at d = 3.1948(8) angstrom are also connected by two equatorial oxygen belonging to a bidentate hydrogenphosphate. This dinuclear character and bridging scheme, not common for metal-amino acid compounds, is a consequence of the properties of the phosphate anions. The magnetic susceptibility at temperatures between 2 and 300 K and the isothermal magnetization curves at T = 2.29(1) K with applied fields up to 9 T were measured. The magnetic data indicate an antiferromagnetic intradinuclear exchange coupling J/kB = -3.7(1) K and using a molecular field approximation we estimated a weaker ferromagnetic, interaction J´/kB ~ 0.3 K between neighbour dinuclear units. 
Fil: Santana, R. C.. Universidade Federal de Goiás; Brasil
Fil: Carvalho, J. F.. Universidade Federal de Goiás; Brasil
Fil: Vencato, I.. Universidade Federal de Goiás; Brasil
Fil: Napolitano, H. B.. Universidade Estadual de Goiás; Brasil
Fil: Bortoluzzi, A. J.. Universidade Federal de Santa Catarina; Brasil
Fil: Barberis, G. E.. Universidade Estadual de Campinas; Brasil
Fil: Rapp, R. E.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Passeggi, Mario Cesar Genaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Calvo, Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
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:11336/20792
Acceder
id CONICETDig_90f27b13aa8dce5efad6e70dd0328c84
oai_identifier_str oai:ri.conicet.gov.ar:11336/20792
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6Santana, R. C.Carvalho, J. F.Vencato, I.Napolitano, H. B.Bortoluzzi, A. J.Barberis, G. E.Rapp, R. E.Passeggi, Mario Cesar GenaroCalvo, Rafaelhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1A novel dinuclear copper(II) complex with the amino acid L-arginine (L-arg), with mono and bidentate HPO42- oxoanions and an OH- anion. [Cu2(L-arg)2(mu-HPO4-O)(mu-HPO4-O,O´)(mu-OH)]-.(H3O)+.6H2O (1) was prepared and its structure was determined by X-ray diffraction methods. The two independent copper ions are in a distorted square pyramidal coordination, each bonded to one L-arginine molecule. These two Cu(L-arg) units are bridged by two monoatomic equatorial-apical oxygen ligands belonging to a monodentate hydrogenphosphate group, and to the hydroxyl group. The copper ions in the dinuclear unit at d = 3.1948(8) angstrom are also connected by two equatorial oxygen belonging to a bidentate hydrogenphosphate. This dinuclear character and bridging scheme, not common for metal-amino acid compounds, is a consequence of the properties of the phosphate anions. The magnetic susceptibility at temperatures between 2 and 300 K and the isothermal magnetization curves at T = 2.29(1) K with applied fields up to 9 T were measured. The magnetic data indicate an antiferromagnetic intradinuclear exchange coupling J/kB = -3.7(1) K and using a molecular field approximation we estimated a weaker ferromagnetic, interaction J´/kB ~ 0.3 K between neighbour dinuclear units. Fil: Santana, R. C.. Universidade Federal de Goiás; BrasilFil: Carvalho, J. F.. Universidade Federal de Goiás; BrasilFil: Vencato, I.. Universidade Federal de Goiás; BrasilFil: Napolitano, H. B.. Universidade Estadual de Goiás; BrasilFil: Bortoluzzi, A. J.. Universidade Federal de Santa Catarina; BrasilFil: Barberis, G. E.. Universidade Estadual de Campinas; BrasilFil: Rapp, R. E.. Universidade Federal do Rio de Janeiro; BrasilFil: Passeggi, Mario Cesar Genaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaFil: Calvo, Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; ArgentinaElsevier2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/20792Santana, R. C.; Carvalho, J. F.; Vencato, I.; Napolitano, H. B.; Bortoluzzi, A. J.; et al.; Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6; Elsevier; Polyhedron; 26; 17; 12-2007; 5001-50080277-5387CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.poly.2007.07.005info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S027753870700407Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:28:11Zoai:ri.conicet.gov.ar:11336/20792instacron: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 14:28:11.953CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
title Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
spellingShingle Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
Santana, R. C.
title_short Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
title_full Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
title_fullStr Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
title_full_unstemmed Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
title_sort Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6
dc.creator.none.fl_str_mv Santana, R. C.
Carvalho, J. F.
Vencato, I.
Napolitano, H. B.
Bortoluzzi, A. J.
Barberis, G. E.
Rapp, R. E.
Passeggi, Mario Cesar Genaro
Calvo, Rafael
author Santana, R. C.
author_facet Santana, R. C.
Carvalho, J. F.
Vencato, I.
Napolitano, H. B.
Bortoluzzi, A. J.
Barberis, G. E.
Rapp, R. E.
Passeggi, Mario Cesar Genaro
Calvo, Rafael
author_role author
author2 Carvalho, J. F.
Vencato, I.
Napolitano, H. B.
Bortoluzzi, A. J.
Barberis, G. E.
Rapp, R. E.
Passeggi, Mario Cesar Genaro
Calvo, Rafael
author2_role author
author
author
author
author
author
author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A novel dinuclear copper(II) complex with the amino acid L-arginine (L-arg), with mono and bidentate HPO42- oxoanions and an OH- anion. [Cu2(L-arg)2(mu-HPO4-O)(mu-HPO4-O,O´)(mu-OH)]-.(H3O)+.6H2O (1) was prepared and its structure was determined by X-ray diffraction methods. The two independent copper ions are in a distorted square pyramidal coordination, each bonded to one L-arginine molecule. These two Cu(L-arg) units are bridged by two monoatomic equatorial-apical oxygen ligands belonging to a monodentate hydrogenphosphate group, and to the hydroxyl group. The copper ions in the dinuclear unit at d = 3.1948(8) angstrom are also connected by two equatorial oxygen belonging to a bidentate hydrogenphosphate. This dinuclear character and bridging scheme, not common for metal-amino acid compounds, is a consequence of the properties of the phosphate anions. The magnetic susceptibility at temperatures between 2 and 300 K and the isothermal magnetization curves at T = 2.29(1) K with applied fields up to 9 T were measured. The magnetic data indicate an antiferromagnetic intradinuclear exchange coupling J/kB = -3.7(1) K and using a molecular field approximation we estimated a weaker ferromagnetic, interaction J´/kB ~ 0.3 K between neighbour dinuclear units. 
Fil: Santana, R. C.. Universidade Federal de Goiás; Brasil
Fil: Carvalho, J. F.. Universidade Federal de Goiás; Brasil
Fil: Vencato, I.. Universidade Federal de Goiás; Brasil
Fil: Napolitano, H. B.. Universidade Estadual de Goiás; Brasil
Fil: Bortoluzzi, A. J.. Universidade Federal de Santa Catarina; Brasil
Fil: Barberis, G. E.. Universidade Estadual de Campinas; Brasil
Fil: Rapp, R. E.. Universidade Federal do Rio de Janeiro; Brasil
Fil: Passeggi, Mario Cesar Genaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
Fil: Calvo, Rafael. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
description A novel dinuclear copper(II) complex with the amino acid L-arginine (L-arg), with mono and bidentate HPO42- oxoanions and an OH- anion. [Cu2(L-arg)2(mu-HPO4-O)(mu-HPO4-O,O´)(mu-OH)]-.(H3O)+.6H2O (1) was prepared and its structure was determined by X-ray diffraction methods. The two independent copper ions are in a distorted square pyramidal coordination, each bonded to one L-arginine molecule. These two Cu(L-arg) units are bridged by two monoatomic equatorial-apical oxygen ligands belonging to a monodentate hydrogenphosphate group, and to the hydroxyl group. The copper ions in the dinuclear unit at d = 3.1948(8) angstrom are also connected by two equatorial oxygen belonging to a bidentate hydrogenphosphate. This dinuclear character and bridging scheme, not common for metal-amino acid compounds, is a consequence of the properties of the phosphate anions. The magnetic susceptibility at temperatures between 2 and 300 K and the isothermal magnetization curves at T = 2.29(1) K with applied fields up to 9 T were measured. The magnetic data indicate an antiferromagnetic intradinuclear exchange coupling J/kB = -3.7(1) K and using a molecular field approximation we estimated a weaker ferromagnetic, interaction J´/kB ~ 0.3 K between neighbour dinuclear units. 
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/20792
Santana, R. C.; Carvalho, J. F.; Vencato, I.; Napolitano, H. B.; Bortoluzzi, A. J.; et al.; Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6; Elsevier; Polyhedron; 26; 17; 12-2007; 5001-5008
0277-5387
CONICET Digital
CONICET
url http://hdl.handle.net/11336/20792
identifier_str_mv Santana, R. C.; Carvalho, J. F.; Vencato, I.; Napolitano, H. B.; Bortoluzzi, A. J.; et al.; Synthesis, crystal structure and magnetic properties of a new dinuclear copper(II) amino acid complex [Cu-2(L-arg)(2)(mu-HPO4-O)(mu-HPO4-O,O ')(mu-OH)]-.(H3O)+.(H2O)6; Elsevier; Polyhedron; 26; 17; 12-2007; 5001-5008
0277-5387
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.poly.2007.07.005
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S027753870700407X
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_ 1846082744381079552
score 13.22299

Publicaciones similares