Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes

Autores
Sarto, Carolina; Rouzières, Mathieu; Liu, Jun-Liang; Bamberger, Heiko; Van Slageren, Joris; Clérac, Rodolphe; Alborés, Pablo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report the synthesis, structural characterization and a combined computational and experimental study of the magnetic properties of two pivalate cobalt complexes, a mononuclear Co(ii) one and a tetranuclear Co(ii)3Co(iii) mixed valence polynuclear one. The latter shows SMM behaviour revealed under an applied DC field with a thermal barrier of ca. 30 cm-1 competing with direct and Raman relaxation processes. The Orbach thermal barrier can be understood from the doublets energy ladder arising from the anisotropic exchange interaction among ground Seff = 1/2 of each Co(ii) sites. The strong local zero-field splitting of the S = 3/2 Co(ii) states affords these well isolated ground Kramers doublets. DC and AC magnetic susceptibility measurements as well as HF-EPR spectra support this interpretation. CASSCF quantum chemical computations have been also performed in order to aid the overall comprehension of the magnetic behaviour in the reported complexes.
Fil: Sarto, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Rouzières, Mathieu. Universite de Bordeaux; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Liu, Jun-Liang. Centre National de la Recherche Scientifique; Francia. Universite de Bordeaux; Francia
Fil: Bamberger, Heiko. Universität Stuttgart; Alemania
Fil: Van Slageren, Joris. Universität Stuttgart; Alemania
Fil: Clérac, Rodolphe. Universite de Bordeaux; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Alborés, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Materia
SINGLE MOLECULE MAGNETS
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:11336/89309
Acceder
id CONICETDig_2be276dc08a9fc6f45738eb075b859c0
oai_identifier_str oai:ri.conicet.gov.ar:11336/89309
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexesSarto, CarolinaRouzières, MathieuLiu, Jun-LiangBamberger, HeikoVan Slageren, JorisClérac, RodolpheAlborés, PabloSINGLE MOLECULE MAGNETShttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We report the synthesis, structural characterization and a combined computational and experimental study of the magnetic properties of two pivalate cobalt complexes, a mononuclear Co(ii) one and a tetranuclear Co(ii)3Co(iii) mixed valence polynuclear one. The latter shows SMM behaviour revealed under an applied DC field with a thermal barrier of ca. 30 cm-1 competing with direct and Raman relaxation processes. The Orbach thermal barrier can be understood from the doublets energy ladder arising from the anisotropic exchange interaction among ground Seff = 1/2 of each Co(ii) sites. The strong local zero-field splitting of the S = 3/2 Co(ii) states affords these well isolated ground Kramers doublets. DC and AC magnetic susceptibility measurements as well as HF-EPR spectra support this interpretation. CASSCF quantum chemical computations have been also performed in order to aid the overall comprehension of the magnetic behaviour in the reported complexes.Fil: Sarto, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Rouzières, Mathieu. Universite de Bordeaux; Francia. Centre National de la Recherche Scientifique; FranciaFil: Liu, Jun-Liang. Centre National de la Recherche Scientifique; Francia. Universite de Bordeaux; FranciaFil: Bamberger, Heiko. Universität Stuttgart; AlemaniaFil: Van Slageren, Joris. Universität Stuttgart; AlemaniaFil: Clérac, Rodolphe. Universite de Bordeaux; Francia. Centre National de la Recherche Scientifique; FranciaFil: Alborés, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaRoyal Society of Chemistry2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/89309Sarto, Carolina; Rouzières, Mathieu; Liu, Jun-Liang; Bamberger, Heiko; Van Slageren, Joris; et al.; Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes; Royal Society of Chemistry; Dalton Transactions; 47; 47; 11-2018; 17055-170661477-9226CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/DT/C8DT04041Ainfo:eu-repo/semantics/altIdentifier/doi/10.1039/C8DT04041Ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-29T12:41:44Zoai:ri.conicet.gov.ar:11336/89309instacron: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:34982025-10-29 12:41:44.89CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
title Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
spellingShingle Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
Sarto, Carolina
SINGLE MOLECULE MAGNETS
title_short Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
title_full Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
title_fullStr Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
title_full_unstemmed Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
title_sort Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes
dc.creator.none.fl_str_mv Sarto, Carolina
Rouzières, Mathieu
Liu, Jun-Liang
Bamberger, Heiko
Van Slageren, Joris
Clérac, Rodolphe
Alborés, Pablo
author Sarto, Carolina
author_facet Sarto, Carolina
Rouzières, Mathieu
Liu, Jun-Liang
Bamberger, Heiko
Van Slageren, Joris
Clérac, Rodolphe
Alborés, Pablo
author_role author
author2 Rouzières, Mathieu
Liu, Jun-Liang
Bamberger, Heiko
Van Slageren, Joris
Clérac, Rodolphe
Alborés, Pablo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv SINGLE MOLECULE MAGNETS
topic SINGLE MOLECULE MAGNETS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report the synthesis, structural characterization and a combined computational and experimental study of the magnetic properties of two pivalate cobalt complexes, a mononuclear Co(ii) one and a tetranuclear Co(ii)3Co(iii) mixed valence polynuclear one. The latter shows SMM behaviour revealed under an applied DC field with a thermal barrier of ca. 30 cm-1 competing with direct and Raman relaxation processes. The Orbach thermal barrier can be understood from the doublets energy ladder arising from the anisotropic exchange interaction among ground Seff = 1/2 of each Co(ii) sites. The strong local zero-field splitting of the S = 3/2 Co(ii) states affords these well isolated ground Kramers doublets. DC and AC magnetic susceptibility measurements as well as HF-EPR spectra support this interpretation. CASSCF quantum chemical computations have been also performed in order to aid the overall comprehension of the magnetic behaviour in the reported complexes.
Fil: Sarto, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Rouzières, Mathieu. Universite de Bordeaux; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Liu, Jun-Liang. Centre National de la Recherche Scientifique; Francia. Universite de Bordeaux; Francia
Fil: Bamberger, Heiko. Universität Stuttgart; Alemania
Fil: Van Slageren, Joris. Universität Stuttgart; Alemania
Fil: Clérac, Rodolphe. Universite de Bordeaux; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Alborés, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
description We report the synthesis, structural characterization and a combined computational and experimental study of the magnetic properties of two pivalate cobalt complexes, a mononuclear Co(ii) one and a tetranuclear Co(ii)3Co(iii) mixed valence polynuclear one. The latter shows SMM behaviour revealed under an applied DC field with a thermal barrier of ca. 30 cm-1 competing with direct and Raman relaxation processes. The Orbach thermal barrier can be understood from the doublets energy ladder arising from the anisotropic exchange interaction among ground Seff = 1/2 of each Co(ii) sites. The strong local zero-field splitting of the S = 3/2 Co(ii) states affords these well isolated ground Kramers doublets. DC and AC magnetic susceptibility measurements as well as HF-EPR spectra support this interpretation. CASSCF quantum chemical computations have been also performed in order to aid the overall comprehension of the magnetic behaviour in the reported complexes.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/89309
Sarto, Carolina; Rouzières, Mathieu; Liu, Jun-Liang; Bamberger, Heiko; Van Slageren, Joris; et al.; Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes; Royal Society of Chemistry; Dalton Transactions; 47; 47; 11-2018; 17055-17066
1477-9226
CONICET Digital
CONICET
url http://hdl.handle.net/11336/89309
identifier_str_mv Sarto, Carolina; Rouzières, Mathieu; Liu, Jun-Liang; Bamberger, Heiko; Van Slageren, Joris; et al.; Slow magnetization dynamics in Co(ii)/Co(iii) triethanolamine/pivalate complexes; Royal Society of Chemistry; Dalton Transactions; 47; 47; 11-2018; 17055-17066
1477-9226
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/DT/C8DT04041A
info:eu-repo/semantics/altIdentifier/doi/10.1039/C8DT04041A
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
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
_version_ 1847427432652472320
score 13.10058

Publicaciones similares