Structural Characterization, Magnetic and Luminescent Properties of Praseodymium(III)-4,4,4-Trifluoro-1-(2-Naphthyl)Butane-1,3-Dionato(1-) Complexes
نویسندگان
چکیده
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 structurally characterized. The display the coordination numbers 8 for 1, 3 4, 10 2. Magnetic measurements 1–4 were consistent with a magnetically uncoupled Pr3+ ion in 3H4 ground state. solid state luminescence studies showed that ancillary chelating bipyridyl ligands 2–4 greatly enhance emission visible NIR regions through efficient energy transfer from to central ion; behaving as “antenna” ligands.
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ژورنال
عنوان ژورنال: Crystals
سال: 2021
ISSN: ['2073-4352']
DOI: https://doi.org/10.3390/cryst11020179