Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes
- Autores
- Villa Perez, Cristian; Zabala Lekuona, Andoni; Vitorica Yrezabal, Iñigo J.; Seco, José Manuel; Cepeda, Javier; Echeverría, Gustavo Alberto; Soria, Delia Beatriz
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Monomeric [Co(SDZ)2phen] (1) and [Co(SDZ)(bq)Cl] (2) complexes (SDZ = sulfadiazine, phen = 1,10-phenanthroline, and bq = 2,2′-biquinoline) have been synthesized and characterized. X-ray diffraction studies indicate that SDZ acts as a bidentate ligand coordinating through the sulfonamide and the pyrimidine N atoms in both compounds. In complex 1, the coordination sphere consists of two SDZ ligands and a bis-chelating phen ligand, giving rise to a CoN6 coordination sphere. On the other hand, 2 has a CoN4Cl core, with two N-atoms from SDZ and two from the bq ligand. Both compounds have been studied by dc and ac magnetometry and shown to display slow magnetic relaxation under an optimum external dc field (1 kOe) at low temperatures. Moreover, compound 2 displays long range magnetic ordering provided by spin-canted antiferromagnetism, which has been characterized by further field-dependent magnetic susceptibility measurements, FC/ZFC curves, hysteresis loops and frequency-independent ac curves. The signs of the calculated D parameters, positive in 1 and negative in 2, have been rationalized according to the two lowest-lying transitions in the orbital energy diagrams derived from ab initio ligand field theory (AILFT). In a subsequent attempt to reveal the possible hidden zero-field SMM behaviour, Ni(ii)-based 3 and Co(ii)-doped Ni(ii)-based (with a Ni : Co ratio of 0.9 : 0.1) heterometallic compound 2Ni were synthesized.
Fil: Villa Perez, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina
Fil: Zabala Lekuona, Andoni. Universidad del País Vasco; España
Fil: Vitorica Yrezabal, Iñigo J.. Universidad de Granada; España
Fil: Seco, José Manuel. Universidad del País Vasco; España
Fil: Cepeda, Javier. Universidad del País Vasco; España
Fil: Echeverría, Gustavo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Soria, Delia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina - Materia
-
slow magnetic
cobalt complexes
sulfadiazine
single molecules magnet - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/230670
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Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexesVilla Perez, CristianZabala Lekuona, AndoniVitorica Yrezabal, Iñigo J.Seco, José ManuelCepeda, JavierEcheverría, Gustavo AlbertoSoria, Delia Beatrizslow magneticcobalt complexessulfadiazinesingle molecules magnethttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Monomeric [Co(SDZ)2phen] (1) and [Co(SDZ)(bq)Cl] (2) complexes (SDZ = sulfadiazine, phen = 1,10-phenanthroline, and bq = 2,2′-biquinoline) have been synthesized and characterized. X-ray diffraction studies indicate that SDZ acts as a bidentate ligand coordinating through the sulfonamide and the pyrimidine N atoms in both compounds. In complex 1, the coordination sphere consists of two SDZ ligands and a bis-chelating phen ligand, giving rise to a CoN6 coordination sphere. On the other hand, 2 has a CoN4Cl core, with two N-atoms from SDZ and two from the bq ligand. Both compounds have been studied by dc and ac magnetometry and shown to display slow magnetic relaxation under an optimum external dc field (1 kOe) at low temperatures. Moreover, compound 2 displays long range magnetic ordering provided by spin-canted antiferromagnetism, which has been characterized by further field-dependent magnetic susceptibility measurements, FC/ZFC curves, hysteresis loops and frequency-independent ac curves. The signs of the calculated D parameters, positive in 1 and negative in 2, have been rationalized according to the two lowest-lying transitions in the orbital energy diagrams derived from ab initio ligand field theory (AILFT). In a subsequent attempt to reveal the possible hidden zero-field SMM behaviour, Ni(ii)-based 3 and Co(ii)-doped Ni(ii)-based (with a Ni : Co ratio of 0.9 : 0.1) heterometallic compound 2Ni were synthesized.Fil: Villa Perez, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaFil: Zabala Lekuona, Andoni. Universidad del País Vasco; EspañaFil: Vitorica Yrezabal, Iñigo J.. Universidad de Granada; EspañaFil: Seco, José Manuel. Universidad del País Vasco; EspañaFil: Cepeda, Javier. Universidad del País Vasco; EspañaFil: Echeverría, Gustavo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Soria, Delia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaRoyal Society of Chemistry2024-02info: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/11336/230670Villa Perez, Cristian; Zabala Lekuona, Andoni; Vitorica Yrezabal, Iñigo J.; Seco, José Manuel; Cepeda, Javier; et al.; Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes; Royal Society of Chemistry; Dalton Transactions; 2-2024; 1-131477-9226CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2024/DT/D3DT02359Ainfo:eu-repo/semantics/altIdentifier/doi/10.1039/D3DT02359Ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:49Zoai:ri.conicet.gov.ar:11336/230670instacron: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:34982025-09-03 10:08:49.988CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
title |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
spellingShingle |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes Villa Perez, Cristian slow magnetic cobalt complexes sulfadiazine single molecules magnet |
title_short |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
title_full |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
title_fullStr |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
title_full_unstemmed |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
title_sort |
Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes |
dc.creator.none.fl_str_mv |
Villa Perez, Cristian Zabala Lekuona, Andoni Vitorica Yrezabal, Iñigo J. Seco, José Manuel Cepeda, Javier Echeverría, Gustavo Alberto Soria, Delia Beatriz |
author |
Villa Perez, Cristian |
author_facet |
Villa Perez, Cristian Zabala Lekuona, Andoni Vitorica Yrezabal, Iñigo J. Seco, José Manuel Cepeda, Javier Echeverría, Gustavo Alberto Soria, Delia Beatriz |
author_role |
author |
author2 |
Zabala Lekuona, Andoni Vitorica Yrezabal, Iñigo J. Seco, José Manuel Cepeda, Javier Echeverría, Gustavo Alberto Soria, Delia Beatriz |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
slow magnetic cobalt complexes sulfadiazine single molecules magnet |
topic |
slow magnetic cobalt complexes sulfadiazine single molecules magnet |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Monomeric [Co(SDZ)2phen] (1) and [Co(SDZ)(bq)Cl] (2) complexes (SDZ = sulfadiazine, phen = 1,10-phenanthroline, and bq = 2,2′-biquinoline) have been synthesized and characterized. X-ray diffraction studies indicate that SDZ acts as a bidentate ligand coordinating through the sulfonamide and the pyrimidine N atoms in both compounds. In complex 1, the coordination sphere consists of two SDZ ligands and a bis-chelating phen ligand, giving rise to a CoN6 coordination sphere. On the other hand, 2 has a CoN4Cl core, with two N-atoms from SDZ and two from the bq ligand. Both compounds have been studied by dc and ac magnetometry and shown to display slow magnetic relaxation under an optimum external dc field (1 kOe) at low temperatures. Moreover, compound 2 displays long range magnetic ordering provided by spin-canted antiferromagnetism, which has been characterized by further field-dependent magnetic susceptibility measurements, FC/ZFC curves, hysteresis loops and frequency-independent ac curves. The signs of the calculated D parameters, positive in 1 and negative in 2, have been rationalized according to the two lowest-lying transitions in the orbital energy diagrams derived from ab initio ligand field theory (AILFT). In a subsequent attempt to reveal the possible hidden zero-field SMM behaviour, Ni(ii)-based 3 and Co(ii)-doped Ni(ii)-based (with a Ni : Co ratio of 0.9 : 0.1) heterometallic compound 2Ni were synthesized. Fil: Villa Perez, Cristian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina Fil: Zabala Lekuona, Andoni. Universidad del País Vasco; España Fil: Vitorica Yrezabal, Iñigo J.. Universidad de Granada; España Fil: Seco, José Manuel. Universidad del País Vasco; España Fil: Cepeda, Javier. Universidad del País Vasco; España Fil: Echeverría, Gustavo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina Fil: Soria, Delia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; Argentina |
description |
Monomeric [Co(SDZ)2phen] (1) and [Co(SDZ)(bq)Cl] (2) complexes (SDZ = sulfadiazine, phen = 1,10-phenanthroline, and bq = 2,2′-biquinoline) have been synthesized and characterized. X-ray diffraction studies indicate that SDZ acts as a bidentate ligand coordinating through the sulfonamide and the pyrimidine N atoms in both compounds. In complex 1, the coordination sphere consists of two SDZ ligands and a bis-chelating phen ligand, giving rise to a CoN6 coordination sphere. On the other hand, 2 has a CoN4Cl core, with two N-atoms from SDZ and two from the bq ligand. Both compounds have been studied by dc and ac magnetometry and shown to display slow magnetic relaxation under an optimum external dc field (1 kOe) at low temperatures. Moreover, compound 2 displays long range magnetic ordering provided by spin-canted antiferromagnetism, which has been characterized by further field-dependent magnetic susceptibility measurements, FC/ZFC curves, hysteresis loops and frequency-independent ac curves. The signs of the calculated D parameters, positive in 1 and negative in 2, have been rationalized according to the two lowest-lying transitions in the orbital energy diagrams derived from ab initio ligand field theory (AILFT). In a subsequent attempt to reveal the possible hidden zero-field SMM behaviour, Ni(ii)-based 3 and Co(ii)-doped Ni(ii)-based (with a Ni : Co ratio of 0.9 : 0.1) heterometallic compound 2Ni were synthesized. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-02 |
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/11336/230670 Villa Perez, Cristian; Zabala Lekuona, Andoni; Vitorica Yrezabal, Iñigo J.; Seco, José Manuel; Cepeda, Javier; et al.; Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes; Royal Society of Chemistry; Dalton Transactions; 2-2024; 1-13 1477-9226 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/230670 |
identifier_str_mv |
Villa Perez, Cristian; Zabala Lekuona, Andoni; Vitorica Yrezabal, Iñigo J.; Seco, José Manuel; Cepeda, Javier; et al.; Spin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexes; Royal Society of Chemistry; Dalton Transactions; 2-2024; 1-13 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/http://pubs.rsc.org/en/Content/ArticleLanding/2024/DT/D3DT02359A info:eu-repo/semantics/altIdentifier/doi/10.1039/D3DT02359A |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/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 |
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1842270059092770816 |
score |
13.13397 |