Mononuclear lanthanide complexes with 18-crown-6 ether: synthesis, characterization, magnetic properties, and theoretical studies

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dc.contributor.authorMaxwell Villacorta, Lindley Andrés
dc.contributor.authorAmoza Dávila, Martín
dc.contributor.authorRuiz Sabín, Eliseo
dc.date.accessioned2020-04-02T09:02:49Z
dc.date.available2020-04-02T09:02:49Z
dc.date.issued2018-10-25
dc.date.updated2020-04-02T09:02:49Z
dc.description.abstractA family of lanthanide metal complexes with general formula [Ln(H2O)3(18-crown-6)](ClO4)3 (Ln: TbIII, DyIII, ErIII and YbIII) has been synthesized. Their magnetic properties have been characterized by DC and AC SQUID measurements and analyzed with the help of CASSCF-type calculations. The DyIII and YbIII compounds show slow relaxation of the magnetization under an external magnetic field. The analysis of the dependence of the relaxation time with the temperature and external magnetic field reveals that the main contributions are respectively the quantum tunneling and the Raman term, respectively. The analysis of the beta electron density and electrostatic potentials indicate that the axial ligands (three water molecules) generate a relatively small repulsion with the lanthanide electron density being the reason of the moderate magnetic anisotropy found in these systems.
dc.format.extent10 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec685745
dc.identifier.issn0020-1669
dc.identifier.urihttps://hdl.handle.net/2445/154825
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1021/acs.inorgchem.8b01688
dc.relation.ispartofInorganic Chemistry, 2018, vol. 57, num. 21, p. 13225-13234
dc.relation.urihttps://doi.org/10.1021/acs.inorgchem.8b01688
dc.rights(c) American Chemical Society , 2018
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.sourceArticles publicats en revistes (Química Inorgànica i Orgànica)
dc.subject.classificationMetalls de terres rares
dc.subject.classificationImants
dc.subject.classificationÈters
dc.subject.classificationPropietats magnètiques
dc.subject.otherRare earth metals
dc.subject.otherMagnets
dc.subject.otherEthers
dc.subject.otherMagnetic properties
dc.titleMononuclear lanthanide complexes with 18-crown-6 ether: synthesis, characterization, magnetic properties, and theoretical studies
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion

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