Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores

Autores
Alborés, Pablo; Rentschler, Eva
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A novel 1D chain built up from stringing of [Co2(μ-OH 2)(μ-O2CC(CH3)3)2] units with the bridging 2,2′-bipyrimidine ligand has been synthesized and structurally characterized. The chains are well isolated from each other by the bulky tert-butyl groups of the carboxlyates and show an alternating zigzag configuration for the Co(II) metallic centres. DC magnetic measurements show anti-ferromagnetic coupling, Jca.-3 cm-1 between adjacent Co(II) ions along the chain. Noticeably, good data fitting was obtained by means of simple models that neglect any kind of first order orbital contribution to the spin ground state, which is normally observed in Co(II) complexes. These results were further confirmed by broken-symmetry DFT calculations performed on a tetranuclear model emulating the 1D chain structure. Field dependence magnetization measurements show an incipient field-induced energy level crossing at high magnetic field and low temperature (1.8 K).
Fil: Alborés, Pablo. Johannes Gutenberg Universitat Mainz; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rentschler, Eva. Johannes Gutenberg Universitat Mainz; Alemania
Materia
Single-Molecule Magnets
X-Ray-Structure
Coordination Polymers
Crystal-Structure
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:11336/74933
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung coresAlborés, PabloRentschler, EvaSingle-Molecule MagnetsX-Ray-StructureCoordination PolymersCrystal-Structurehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A novel 1D chain built up from stringing of [Co2(μ-OH 2)(μ-O2CC(CH3)3)2] units with the bridging 2,2′-bipyrimidine ligand has been synthesized and structurally characterized. The chains are well isolated from each other by the bulky tert-butyl groups of the carboxlyates and show an alternating zigzag configuration for the Co(II) metallic centres. DC magnetic measurements show anti-ferromagnetic coupling, Jca.-3 cm-1 between adjacent Co(II) ions along the chain. Noticeably, good data fitting was obtained by means of simple models that neglect any kind of first order orbital contribution to the spin ground state, which is normally observed in Co(II) complexes. These results were further confirmed by broken-symmetry DFT calculations performed on a tetranuclear model emulating the 1D chain structure. Field dependence magnetization measurements show an incipient field-induced energy level crossing at high magnetic field and low temperature (1.8 K).Fil: Alborés, Pablo. Johannes Gutenberg Universitat Mainz; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rentschler, Eva. Johannes Gutenberg Universitat Mainz; AlemaniaRoyal Society of Chemistry2009-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74933Alborés, Pablo; Rentschler, Eva; Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores; Royal Society of Chemistry; Dalton Transactions; 14; 12-2009; 2609-26150300-9246CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/b820594ainfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2009/DT/b820594ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:12Zoai:ri.conicet.gov.ar:11336/74933instacron: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 10:22:12.87CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
title Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
spellingShingle Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
Alborés, Pablo
Single-Molecule Magnets
X-Ray-Structure
Coordination Polymers
Crystal-Structure
title_short Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
title_full Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
title_fullStr Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
title_full_unstemmed Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
title_sort Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores
dc.creator.none.fl_str_mv Alborés, Pablo
Rentschler, Eva
author Alborés, Pablo
author_facet Alborés, Pablo
Rentschler, Eva
author_role author
author2 Rentschler, Eva
author2_role author
dc.subject.none.fl_str_mv Single-Molecule Magnets
X-Ray-Structure
Coordination Polymers
Crystal-Structure
topic Single-Molecule Magnets
X-Ray-Structure
Coordination Polymers
Crystal-Structure
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A novel 1D chain built up from stringing of [Co2(μ-OH 2)(μ-O2CC(CH3)3)2] units with the bridging 2,2′-bipyrimidine ligand has been synthesized and structurally characterized. The chains are well isolated from each other by the bulky tert-butyl groups of the carboxlyates and show an alternating zigzag configuration for the Co(II) metallic centres. DC magnetic measurements show anti-ferromagnetic coupling, Jca.-3 cm-1 between adjacent Co(II) ions along the chain. Noticeably, good data fitting was obtained by means of simple models that neglect any kind of first order orbital contribution to the spin ground state, which is normally observed in Co(II) complexes. These results were further confirmed by broken-symmetry DFT calculations performed on a tetranuclear model emulating the 1D chain structure. Field dependence magnetization measurements show an incipient field-induced energy level crossing at high magnetic field and low temperature (1.8 K).
Fil: Alborés, Pablo. Johannes Gutenberg Universitat Mainz; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rentschler, Eva. Johannes Gutenberg Universitat Mainz; Alemania
description A novel 1D chain built up from stringing of [Co2(μ-OH 2)(μ-O2CC(CH3)3)2] units with the bridging 2,2′-bipyrimidine ligand has been synthesized and structurally characterized. The chains are well isolated from each other by the bulky tert-butyl groups of the carboxlyates and show an alternating zigzag configuration for the Co(II) metallic centres. DC magnetic measurements show anti-ferromagnetic coupling, Jca.-3 cm-1 between adjacent Co(II) ions along the chain. Noticeably, good data fitting was obtained by means of simple models that neglect any kind of first order orbital contribution to the spin ground state, which is normally observed in Co(II) complexes. These results were further confirmed by broken-symmetry DFT calculations performed on a tetranuclear model emulating the 1D chain structure. Field dependence magnetization measurements show an incipient field-induced energy level crossing at high magnetic field and low temperature (1.8 K).
publishDate 2009
dc.date.none.fl_str_mv 2009-12
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/11336/74933
Alborés, Pablo; Rentschler, Eva; Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores; Royal Society of Chemistry; Dalton Transactions; 14; 12-2009; 2609-2615
0300-9246
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74933
identifier_str_mv Alborés, Pablo; Rentschler, Eva; Structural and magnetic characterization of a 1D chain of [Co(II)2(μ-aqua)(μ-carboxylate)2] strung cores; Royal Society of Chemistry; Dalton Transactions; 14; 12-2009; 2609-2615
0300-9246
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/b820594a
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/Content/ArticleLanding/2009/DT/b820594a
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 Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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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score 13.070432

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