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Synthesis and spectroscopic characterization of novel lanthanide complexes, based on tripodal ligands prepared by reaction of 3-aryl/heteroaryl-4-benzoyl-1-phenyl-5-pyrazolone (where aryl/heteroaryl=phenyl, 2-pirydyl or 2-thienyl) with tris(2-aminoethyl)amine (TREN) are reported. All of the new Schiff base-type ligands have relatively high located triplet energy levels in comparison with their simple...
A novel, promising ligand for luminescent lanthanide complexes tris-((4-(3-methyl-1-phenyl-5-pyrazolonyl)-phenylmethylidene)-2-aminoethyl)amine (trenPMBP) was prepared and used as effective “antenna” for the ligand-sensitized photoluminescence of Tb 3+ , Dy 3+ and Sm 3+ ions. All the complexes show surprisingly intensive photoluminescence in comparison with their simple 4-benzoyl-3-methyl-1-phenyl-5-pyrazolone...
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