稀土掺杂铕(Ⅲ)二苯甲酰甲烷邻菲咯啉三元配合物的合成和荧光性质

Synthesis and Photoluminescence Properties of Eu ^(3+)-Dibenzoylmethane-1, 10-Phenanthroline Ternary Complexes Doped with La^(3+),Y^(3+) or Gd^(3+)

合成了 3个系列稀土掺杂铕二苯甲酰甲烷 (Hdbm)邻菲咯啉 (phen)三元配合物 Eux RE1 -x(dbm) 3 phen(RE=La,Y,Gd;x=0 .0 0、0 .1 0、0 .30、0 .5 0、0 .70、0 .80、0 .90、1 .0 0 ) ,通过元素分析、摩尔电导率、红外光谱、X射线粉末衍射对配合物进行了表征。对各配合物系列进行荧光光谱研究 ,发现 L a3 +、Y3 +和 Gd3 +对Eu3 + 离子均有荧光增敏作用 ,其荧光增敏顺序为 L a3 + >Y3 + >Gd3 + 。

Three series of solid complexes of Eu_xRE_ 1-x(dbm)_3phen(RE=La,Y,Gd,x=0.00,0.10,0.30,0.50,0.70,0.80,0.90,1.00) were synthesized and then characterized by elemental analysis,molar conductance,IR spectra and XRD.Photoluminescence(PL) properties of these complexes were studied.The relations between their fluorescent intensities and the content of doped ions were also discussed.La 3+,Y 3+ and Gd 3+ all could sensitize the fluorescence of Eu 3+ in the order of La 3+>Y 3+>Gd 3+.