SYNTHESIS OF NOVEL MIXED-LIGAND COMPLEXES OF LANTHANIDE IONS WITH 1,4-BIS-(1'-PHENYL-3'-METHYL-5'-PYRAZOLONE-4')-1,4-BUTANEDIONE AND 1,10-PHENANTHROLINE AND THEIR UV, IR, H-1-NMR, FLUORESCENCE AND THERMAL-ANALYSIS STUDIES

The synthesis of 14 mixed-ligand solid complexes of lanthanide ions with 1,4-bis-(1′-phenyl-3′-methyl-5′-pyrazolone-4′)-1,4-butanedione (BPMPBD) and 1,10-phenanthroline (PHEN) in an alcohol-water solution is presented. The comosition of the complexes is determined as Ln2L3P2·nH2O (Ln = Y, La, Pr, Sm-Lu; L = BPMPBD; P = PHEN; n = 4,5) by chemical and elemental analyses. The complexes are regarded as binuclear and characterized by IR, UV, 1H NMR, fluorescence spectra, thermoanalysis and conductance methods. © 1990.