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Title: Insights into the Spin Dynamics of Mononuclear Cerium(III) Single-Molecule Magnets
Author: Mautner, Franz A.
Bierbaumer, Florian
Fischer, Roland C.
Tubau Ribot, Ànnia
Speed Castro, Saskia
Ruiz Sabín, Eliseo
Massoud, Salah S.
Vicente Castillo, Ramón
Gómez Coca, Silvia
Keywords: Propietats magnètiques
Magnetic properties
Issue Date: 2022
Publisher: American Chemical Society
Abstract: Four novel CeIII mononuclear complexes of formulas [Ce(ntfa)3(MeOH)2] (1), [Ce(ntfa)3(5,5′-Me2bipy)] (2), [Ce(ntfa)3(terpy)] (3), and [Ce(ntfa)3(bipy)2] (4), where ntfa = 4,4,4-trifluoro-1-(naphthalen-2-yl)butane-1,3-dionato, 5,5′-Me2bipy = 5,5′-dimethyl-2,2′-dipyridyl, terpy = 2,2′:6′,2″-terpyridine, and bipy = 2,2′-bipyridine, have been synthesized and structurally characterized with CeIII displaying coordination numbers of 8, 8, 9, and 10, respectively. Magnetic measurements indicate that all the complexes show a field-induced single-ion magnet behavior under a small applied dc field. The magnetic analysis shows the relevance of the different spin relaxation mechanisms in the magnetic relaxation of the CeIII compounds, with special emphasis on the local-mode process. Multiconfigurational calculations were also performed to get more information on the axiality of the compounds.
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It is part of: Inorganic Chemistry, 2022, vol. 61, num. 29, p. 11124-11136
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ISSN: 0020-1669
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)

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