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以1,3,5-苯三甲酸根(BTC3-)为阴离子配体,1,10邻菲啰啉(phen)为中性配体,以不同摩尔比铽、钇离子为中心体,合成了系列铽掺钇配合物。经C,N,H元素分析,稀土总量络合滴定和铽、钇分量的测定推测配合物的组成为(TbxY1-x)(HL)L′Cl.1/2H2O(x=0.10,0.30,0.50,0.70,0.90,L=BTC3-,L′=phen);配合物的波谱测定结果表明,配体1,3,5-苯三甲酸根的羧基氧原子和稀土离子配位成键;1,10邻菲啰啉的氮原子与稀土离子螯合成环。荧光发射光谱测试表明,该类配合物是一类发光强度较好的配合物,不发光的钇离子对铽离子的发光有明显的增强作用,铽:钇为0.7:0.3的配合物(Tb0.7Y0.3)(HL)L′Cl.1/2H2O的发光强度最大。
Using 1,3,5-benzenetricarboxylate (BTC3-) as an anionic ligand and 1,10-phenanthroline (phen) as a neutral ligand, terbium and yttrium ions with different molar ratios were used as central ligands to synthesize Series Terbium doped yttrium complexes. The composition of the complex was (TbxY1-x) (HL) L’Cl.1 / 2H2O (x = 0.10, 0.30, 0.50, 0.70, 0.90, L = BTC3-, L ’= phen). The spectroscopic results of the complexes show that the carboxyl oxygen atom of 1,3,5-benzenetricarboxylate coordinates with the rare earth ions and 1 , 10-phenanthroline nitrogen atoms and rare earth ion chelation ring. Fluorescence emission spectroscopy showed that these complexes are a kind of complexes with better luminescence intensity. The non-luminescent yttrium ions have a significant enhancement on the luminescence of terbium ions. Tb (superscript 3+): 0.7: 0.3 (Tb0. 7Y0.3) (HL) The luminous intensity of L’Cl.1 / 2H2O is the largest.