二（4，4’-二甲基-2，2’-联二吡啶）-三硝酸合铕（III）的合成，结构和荧光性质

摘要

用溶剂热法合成了一种新的单核铕配合物，二（4，4’-二甲基-2，2’-联二吡啶）-三硝酸合铕（III），该配合物的晶体属单斜晶系，C2/c 空间群晶胞参数分别是：a=21.71(5)Å, b=10.203(18)Å, c=16.08(3)Å,ß=118.19(11)°, Z=4, Dc=1.630 Mg/m3, V=3139(11)Å-3。配合物在321 nm的紫外光的照射下，在616 nm波长处有强的荧光发射，可望成为一种有实用价值的红光材料。%A new europium(III) complex: bis(4,4'-dimethyl-2,2'-bipyridinato)-tris(nitrato-o,o')-europium(III) was prepared by the method of solvothermal synthesis, and its mononuclear crystal structure was determined by X-ray diffraction. The crystal structure of the title compound crystallized in monoclinic, space group C2/c, with a=21.71(5) Å, b=10.203(18) Å, c=16.08(3)Å, ß=118.19(11)°, Z=4, Dc=1.630Mg/m3, V=3139(11)Å-3. The fluorescent properties show that the compound may be a candidate of red light material for its strong emission at 616 nm under ultraviolet radiation of 321 nm.