SYNTHESIS AND STUDY ON STRUCTUR AND LUMINESCENT PROPERTIES OF TERBI (III) TERNARY COMPLEX WITH BEZOYLTRIFLUOROACETONATE AND 2,2’ – DIPYRIDINE N,N’ - DIOXIDE

Abstract

    A ternary complex of europium with benzoyltrifluoroacetate and 2,2'-dipyridine N,N'- dioxide [Eu(BTFAC)3(dpy-O2)] was synthesized and investigated by method ofinfrared spectroscopy and single crystal X - ray diffraction. The results showed thatthe ligand dpy-O2 had pushed H2O out of the innersphere of the binary complex andEu3+ ion is coordinated by six O atoms of three BTFAC- and two O atoms of dpy-O2,thus coordination number of Eu(III) is 8. The fluorescence of the complex was strongin visible region (λmax=614nm).

Keywords: Rare earth, β- diketone, luminescent materials, complexes