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dc.contributor.author Autor Alexandru, Maria-Gabriela-
dc.contributor.author Autor Visinescu, Diana-
dc.contributor.author Autor Shova, Sergiu-
dc.contributor.author Autor Moliner, Nicolás-
dc.contributor.author Autor Pacheco, Mario-
dc.contributor.author Autor Julve, Miguel-
dc.contributor.author Autor Lloret, Francesc-
dc.contributor.filiacion Filiación Alexandru Maria-Gabriela, National University of Science and Technology Politehnica of Bucharest (Romania). Faculty of Chemical Engineering and Biotechnologies. Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry.-
dc.contributor.filiacion Filiación Visinescu Diana, Ilie Murgulescu Institute of Physical Chemistry, Romanian Academy (romania). Coordination and Supramolecular Chemistry Laboratory.-
dc.contributor.filiacion Filiación Shova Sergiu, Romanian Academy (Romania). Petru Poni Institute of Macromolecular Chemistry.-
dc.contributor.filiacion Filiación Moliner Nicolás, Universitat de València (Spain). Instituto de Ciencia Molecular. Departament de Química Inorgànica.-
dc.contributor.filiacion Filiación Pacheco Mario, Universitat de València (Spain). Instituto de Ciencia Molecular. Departament de Química Inorgànica; Universidad de la República (Uruguay). Facultad de Química.-
dc.contributor.filiacion Filiación Julve Miguel, Universitat de València (Spain). Instituto de Ciencia Molecular. Departament de Química Inorgànica.-
dc.contributor.filiacion Filiación Lloret Francesc, Universitat de València (Spain). Instituto de Ciencia Molecular. Departament de Química Inorgànica.-
dc.date.accessioned Fecha ingreso 2026-05-26T11:45:28Z-
dc.date.available Fecha disponible 2026-05-26T11:45:28Z-
dc.date.issued Año de publicación 2026-
dc.description.abstract Resumen An isostructural series of neutral cyano-bridged tetranuclear iron(III)–lanthanide(III) complexes of general formula {[Fe(htpzb)(CN)(μ-CN)2]2[Ln(dmbpy)(NO3)2(H2O)]2}·2CH3CN·2H2O [Ln = Gd (1), Tb (2), Dy (3), Ho (4), and Er (5); htpzb = hydrotris(pyrazolyl)borate and dmbpy = 4,4’-dimethyl-2,2’-bipyridine] was synthesized and structurally and magnetically characterized. Single-crystal X-ray analysis of 1–5 revealed the formation of neutral cyano-bridged {FeIII 2 LnIII 2 } complexes (Ln = Gd, Tb, Dy, Ho, and Er) of square-like topology that crystallize in the triclinic P1¯ space group. Solid-state direct-current magnetic susceptibility analysis evidenced weak intramolecular antiferromagnetic FeIII–LnIII interactions in 1 (Ln = Gd) together with large local magnetic anisotropies from the LnIII ion in 2–5 (Ln = Tb, Dy, Ho, and Er). Frequencydependent alternating current magnetic susceptibility signals occurred for 1–5 under an applied dc magnetic field of H = 1.0 (1) or 0.5 T (2–5), indicating field-induced slow magnetic relaxation effects typical of single-molecule magnets. Depending on the non-Kramer (Tb, Ho) or Kramer (Gd, Dy, Er) nature of the LnIII ion, a single magnetic relaxation process via Orbach or Raman mechanism (2 and 4) or a multiple magnetic relaxation process that combines Orbach or Raman plus quantum tunneling of magnetization and/or direct (1, 3, and 5) mechanisms occurred along this series. 1–5 showed large magnetocaloric effects with a high to moderate maximum value of the magnetic entropy change at optimum working temperatures just above He liquefaction [−ΔSmax = 16.51 (1), 5.42 (2), 6.02 (3), 4.56 (4), and 5.86 J kg−1 K−1 (5) for H = 5 T at Topt = Tmax = 2 (1), 4 (2, 3 and 5), and 6 K (4)], as well as a high to moderate magnetocaloric index at rather low optimum working fields [MCI = 6.4 (1), 3.3 (2), 4.7 (3), 0.9 (4), and 3.6 J kg−1 K−1 T−1 (5) for Hopt = Hmax = 1.0 (1), 0.6 (2), 0.4 (3), 0.8 (4), and 0.6 T (5) at T = 2 K].es
dc.format.extent Extensión 16 p.es
dc.format.mimetype Formato application/pdfes
dc.identifier.citation Citación Alexandru, M., Visinescu, D., Shova, S. y otros. "Cyano-bridged {Ln2 IIIFe2 III} molecular squares (Ln = Gd, Tb, Dy, Ho, and Er) :tuning the slow magnetic relaxation and magnetocaloric effects in zero-dimensional lanthanide Prussian blue analogues" [en línea]. Inorganic Chemistry Frontiers, v. 13, 2026. -- e3170. 16 p.es
dc.identifier.doi DOI 10.1039/d5qi02520f-
dc.identifier.uri URI https://hdl.handle.net/20.500.12008/55202-
dc.language.iso Idioma enes
dc.publisher Editorial Royal Society of Chemistryes
dc.relation.isformatof Está en formato: PDFes
dc.relation.ispartof EN Inorganic Chemistry Frontiers, v. 13, 2026. -- e3170es
dc.rights Derechos Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad de la República.(Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)es
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dc.subject Palabras clave Azul de prusiaes
dc.subject Palabras clave Análisis de rayos Xes
dc.subject Palabras clave Susceptibilidad magnéticaes
dc.subject Palabras clave Anisotropíaes
dc.title Título Cyano-bridged {Ln2 IIIFe2 III} molecular squares (Ln = Gd, Tb, Dy, Ho, and Er) :tuning the slow magnetic relaxation and magnetocaloric effects in zero-dimensional lanthanide Prussian blue analogueses
dc.type Tipo de documento Artículoes

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