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dc.contributor.authorVilla Pérez, Cristian
dc.contributor.authorZabala Lekuona, Andoni
dc.contributor.authorVitorica Yrezabal, Iñigo J.
dc.contributor.authorSeco Botana, José Manuel ORCID
dc.contributor.authorCepeda Ruiz, Javier
dc.contributor.authorEcheverria, Gustavo
dc.contributor.authorSoria, Delia Beatriz
dc.date.accessioned2024-04-18T15:21:57Z
dc.date.available2024-04-18T15:21:57Z
dc.date.issued2024-01
dc.identifier.citationDalton Transactions 53 : 3254-3266 (2024)es_ES
dc.identifier.issn1477-9234
dc.identifier.issn1477-9226
dc.identifier.urihttp://hdl.handle.net/10810/66776
dc.description.abstractMonomeric [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.es_ES
dc.description.sponsorshipC. V.-P. acknowledges the financial support from ANPCYT (PICT 2019-02589). D. B. S. and G. A. E. would like to thank Universidad Nacional de La Plata (UNLP) 11X/876 and X857 and CONICET. The financial support by Gobierno Vasco/Eusko Jaurlaritza (IT1755-22) is also acknowledged. The authors are thankful for the technical and human support provided by the Geochronology and Isotope Geochemistry-SGIker facility of UPV/EHU and European funding (ERDF and ESF). The authors acknowledge Dr María Mar Quesada-Moreno for insightful discussions and help with the quantum-chemical calculations, and they are also grateful to Dr Oscar Castillo for the enlightening discussions on the magnetic properties of these compounds.es_ES
dc.language.isoenges_ES
dc.publisherRSCes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.titleSpin canting and slow magnetic relaxation in mononuclear cobalt(ii) sulfadiazine ternary complexeses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holderThis article is licensed under a Creative Commons Attribution 3.0 Unported licencees_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttps://pubs.rsc.org/en/content/articlelanding/2024/dt/d3dt02359aes_ES
dc.identifier.doi10.1039/D3DT02359A
dc.departamentoesQuímica aplicadaes_ES
dc.departamentoesQuímica inorgánicaes_ES
dc.departamentoeuKimika aplikatuaes_ES
dc.departamentoeuKimika ez-organikoaes_ES


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