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dc.creatorPerić, Marko
dc.creatorGarcia-Fuente, Amador
dc.creatorZlatar, Matija
dc.creatorDaul, Claude
dc.creatorStepanović, Stepan
dc.creatorGarcia-Fernandez, Pablo
dc.creatorGruden-Pavlović, Maja
dc.date.accessioned2019-05-30T08:07:48Z
dc.date.available2016-01-15
dc.date.issued2015
dc.identifier.issn0947-6539
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2911
dc.description.abstractIn this work we have analyzed in detail the magnetic anisotropy in a series of hydrotris(pyrazolyl)borate (Tp(-)) metal complexes, namely [VTpCl](+), [CrTpCl](+), [MnTpCl](+), [FeTpCl], [CoTpCl], and [NiTpCl], and their substituted methyl and tert-butyl analogues with the goal of observing the effect of the ligand field on the magnetic properties. In the [VTpCl](+), [CrTpCl](+), [CoTpCl], and [NiTpCl] complexes, the magnetic anisotropy arises as a consequence of out-of-state spin-orbit coupling, and covalent changes induced by the substitution of hydrogen atoms on the pyrazolyl rings does not lead to drastic changes in the magnetic anisotropy. On the other hand, much larger magnetic anisotropies were predicted in complexes displaying a degenerate ground state, namely [MnTpCl](+) and [FeTpCl], due to in-state spin-orbit coupling. The anisotropy in these systems was shown to be very sensitive to perturbations, for example, chemical substitution and distortions due to the Jahn-Teller effect. We found that by substituting the hydrogen atoms in [MnTpCl](+) and [FeTpCl] by methyl and tert-butyl groups, certain covalent contributions to the magnetic anisotropy energy (MAE) could be controlled, thereby achieving higher values. Moreover, we showed that the selection of ion has important consequences for the symmetry of the ground spin-orbit term, opening the possibility of achieving zero magnetic tunneling even in non-Kramers ions. We have also shown that substitution may also contribute to a quenching of the Jahn-Teller effect, which could significantly reduce the magnetic anisotropy of the complexes studied.en
dc.publisherWiley-VCH Verlag Gmbh, Weinheim
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172035/RS//
dc.relationSwiss State Secretariat for Research and Innovation
dc.relationRamon y Cajal programme [RYC-2013-12515]
dc.relationCOST Action [CM1305, CM1006]
dc.relationSpanish Ministerio of Economia y Competitividad [FIS2012-37549-C05-4]
dc.relationSwiss National Science Foundation
dc.rightsrestrictedAccess
dc.sourceChemistry-A European Journal
dc.subjectdensity functional calculationsen
dc.subjectJahn-Teller distortionen
dc.subjectligand-field effectsen
dc.subjectmagnetic propertiesen
dc.subjectscorpionate complexesen
dc.titleMagnetic Anisotropy in "Scorpionate" First-Row Transition-Metal Complexes: A Theoretical Investigationen
dc.typearticle
dc.rights.licenseBY-NC-ND
dcterms.abstractГарциа-Фернандез, Пабло; Златар, Матија; Степановић, Степан; Даул, Цлауде; Периц, Марко; Груден-Павловић, Маја; Гарциа-Фуенте, Aмадор;
dc.citation.volume21
dc.citation.issue9
dc.citation.spage3716
dc.citation.epage3726
dc.citation.other21(9): 3716-3726
dc.citation.rankM21
dc.description.otherThis is peer-reviewed version of the article: [https://10.1002/chem.201405480]
dc.description.other[http://cer.ihtm.bg.ac.rs/handle/123456789/1730]
dc.identifier.pmid25591004
dc.identifier.doi10.1002/chem.201405480
dc.identifier.rcubConv_3298
dc.identifier.scopus2-s2.0-84923044611
dc.identifier.wos000350116200028
dc.type.versionacceptedVersion


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