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Title: | Structural Characterization, Magnetic and Luminescent Properties of Praseodymium(III)‐4,4,4‐Trifluoro‐1‐(2‐Naphthyl)Butane‐1,3‐Dionato(1‐)Complexes |
Author: | Mautner, Franz A. Bierbaumer, Florian Fischer, Roland C. Vicente Castillo, Ramón Tubau, Ânnia Ferran, Arnau Massoud, Salah S. |
Keywords: | Luminescència Magnetisme Estructura cristal·lina (Sòlids) Luminescence Magnetism Layer structure (Solids) |
Issue Date: | 11-Feb-2021 |
Publisher: | MDPI |
Abstract: | Four new Pr(III) mononuclear complexes of formula [Pr(ntfa)3(MeOH)2] (1), [Pr(ntfa)3(bipy)2] (2), [Pr(ntfa)3(4,4′-Mt2bipy)] (3) and [Pr(ntfa)3(5,5′-Me2bipy)] (4), where ntfa = 4,4,4-trifuoro-1-(naphthalen-2-yl)butane-1,3-dionato(1-), 5,5′-Me2bipy = 5,5′-dimethyl-2,2′-dipyridine, 4,4′-Mt2bipy = 4,4′-dimethoxy-2,2′-dipyridine, have been synthesized and structurally characterized. The complexes display the coordination numbers 8 for 1, 3 and 4, and 10 for 2. Magnetic measurements of complexes 1-4 were consistent with a magnetically uncoupled Pr3+ ion in the 3H4 ground state. The solid state luminescence studies showed that the ancillary chelating bipyridyl ligands in the 2-4 complexes greatly enhance the luminescence emission in the visible and NIR regions through efficient energy transfer from the ligands to the central Pr3+ ion; behaving as "antenna" ligands. |
Note: | Reproducció del document publicat a: https://doi.org/10.3390/cryst11020179 |
It is part of: | Crystals, 2021, vol. 11, num. 2 |
URI: | http://hdl.handle.net/2445/175272 |
Related resource: | https://doi.org/10.3390/cryst11020179 |
ISSN: | 2073-4352 |
Appears in Collections: | Articles publicats en revistes (Química Inorgànica i Orgànica) |
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