MONO- AND MIXED- LIGAND COMPLEXES OF Yb(III) WITH NEW β-DIKETONES

New ytterbium (III) compounds with β-diketones (2,7-dimethyl-octene-1-dione-3,5 and 2,6-dimethylheptene-1-dione-3,5) their derivatives phenanthroline have been synthesized. The composition chemical structure of the obtained complexes determined by several Phy­sico-chemical investigations. It has shown, that Yb ion coordinates three ligand molecules coordination sphere is supplemented two mole­cules water or a molecule phenanthroline. shown СN 8, polyhedron square antiprism, complex characte­rized no cubic symmetry. All synthesized exhibit intense IR luminescence. significant increase in relative emission intensity mixed due to additional antenna effect molecule.