Trigonally Distorted Hexacoordinate Co(II) Single-Ion Magnets

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dc.contributor.authorNemec, Ivancs
dc.contributor.authorFellner, Ondřej Františekcs
dc.contributor.authorIndruchová, Berenikacs
dc.contributor.authorHerchel, Radovancs
dc.coverage.issue3cs
dc.coverage.volume15cs
dc.date.issued2022-01-29cs
dc.description.abstractBy simple reactions involving various cobalt(II) carboxylates (acetate and in situ prepared pivalate and 4-hydroxybenzoate salts) and neocuproine (neo), we were able to prepare three different carboxylate complexes with the general formula [Co(neo)(RCOO)(2)] (R = -CH3 for 1, (CH3)(3)C- for 2, and 4OH-C4H6- for 3). The [Co(neo)(RCOO)(2)] molecules in the crystal structures of 1-3 adopt a rather distorted coordination environment, with the largest trigonal distortion observed for 1, whereas 2 and 3 are similarly distorted from ideal octahedral geometry. The combined theoretical and experimental investigations of magnetic properties revealed that the spin Hamiltonian formalism was not a valid approach and the L-S Hamiltonian had to be used to reveal very large magnetic anisotropies for 1-3. The measurements of AC susceptibility showed that all three compounds exhibited slow-relaxation of magnetization in a weak external static magnetic field, and thus can be classified as field-induced single-ion magnets. It is noteworthy that 1 also exhibits a weak AC signal in a zero-external magnetic field.en
dc.formattextcs
dc.format.extent1064-1064cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2022, vol. 15, issue 3, p. 1064-1064.en
dc.identifier.doi10.3390/ma15031064cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0003-3231-7849cs
dc.identifier.other177357cs
dc.identifier.researcheridA-6969-2010cs
dc.identifier.scopus57201282084cs
dc.identifier.urihttp://hdl.handle.net/11012/204574
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/15/3/1064cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsingle-ion magnetsen
dc.subjectmagnetic anisotropyen
dc.subjectcobalt(II)en
dc.titleTrigonally Distorted Hexacoordinate Co(II) Single-Ion Magnetsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-177357en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:50:51en
sync.item.modts2025.01.17 15:34:31en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Magneto-Optická a THz Spektroskopiecs
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