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EnglishEuropium(III) coordination compounds having general formula [Eu(beta-dike)(3)L-2] (beta-dike=dibenzoylmethanate, tenoyltrifluoroacetonate; L=1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide) were isolated and characterized. The complexes exhibited bright red emission associated to the D-5(0)-> F-7(J) transitions of the metal center upon excitation with near-UV light, with intrinsic quantum yields around 51% and 65%, respectively, for the dibenzoylmethanate and tenoyltrifluoroacetonate derivatives. More information about the behavior of 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide as an antenna-ligand towards trivalent lanthanide ions was obtained by its coordination to [Ln(NO3)(3)] (Ln=Eu, Gd, Tb) metal fragments.[GRAPHICS].
Europium(III) coordination compounds having general formula [Eu(β-dike)3L2] (β-dike = dibenzoylmethanate, tenoyltrifluoroacetonate; L = 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide) were isolated and characterized. The complexes exhibited bright red emission associated to the 5D0→7FJ transitions of the metal center upon excitation with near-UV light, with intrinsic quantum yields around 51% and 65%, respectively, for the dibenzoylmethanate and tenoyltrifluoroacetonate derivatives. More information about the behavior of 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide as an antenna-ligand towards trivalent lanthanide ions was obtained by its coordination to [Ln(NO3)3] (Ln = Eu, Gd, Tb) metal fragments.
| Autori: | ||
| Data di pubblicazione: | 2019 | |
| Titolo: | 1,3-Dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide as ligand for the preparation of luminescent lanthanide complexes | |
| Rivista: | JOURNAL OF COORDINATION CHEMISTRY | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/00958972.2019.1608440 | |
| Volume: | 72 | |
| Appare nelle tipologie: | 2.1 Articolo su rivista |
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