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Title: Magnetic and Luminescence Properties of 8-Coordinated Pyridyl Adducts of Samarium(III) Complexes Containing 4,4,4-Trifluoro-1-(naphthalen-2-yl)-1,3-butanedionate
Author: Mautner, Franz A.
Bierbaumer, Florian
Vicente Castillo, Ramón
Speed Castro, Saskia
Tubau, Ânnia
Fischer, Roland C.
Massoud, Salah S.
Keywords: Luminescència
Propietats magnètiques
Raigs X
Magnetic properties
Issue Date: 2022
Publisher: MDPI
Abstract: A novel series of polypyridyl adducts, [Sm(ntfa)3(NN)] (2-4), with ntfa = 4,4,4-trifluoro-1-(naphthalen-2-yl)-1,3-butanedionate, NN = 2,2′-bipyridine (bipy), 4,4′-dimethyl-2,2′-bipyridine (4,4′-Me2bipy), and 5,5′-dimethyl-2,2′-bipyridine (5,5′-Me2bipy) were synthesized from the precursor complex [Sm(ntfa)3(MeOH)2] (1) and the corresponding pyridyl ligands. Single X-ray crystallography showed that the complexes displayed 8-coordinated geometry. The solid pyridyl adducts 2-4 exhibited emission of luminescence in the NIR and visible regions with close quantum yields (QY = 0.20-0.25%). The magnetic data of 1-4 showed larger values than those expected for magnetically noncoupled Sm(III) complexes in the 6H5/2 ground state, with no saturation on the applied high magnetic field static at a temperature of 2 K.
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It is part of: Magnetochemistry, 2022, vol. 8, p. 72
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ISSN: 2312-7481
Appears in Collections:Articles publicats en revistes (Química Inorgànica i Orgànica)

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