Influence of La, Y, Gd, Cu, NH4+ Ions and DMSO on Luminescent Property of Terbium Complexes with Sulfosalicylate
来源期刊：JOURNAL OF RARE EARTHS2002年第5期
论文作者：欧阳亮 顾超 李俊然 许明远
Key words：rare earths; terbium; sulfosalicylic acid; complexes; luminescent;
Abstract: The complex Tb(SSA)*H2O (1) and Tb2.5La (SSA)3.5*7H2O (2), TbY(SSA)2*2H2O (3), Tb1.5Gd(SSA)2.5*4H2O (4), TbGd1.5(SSA)2.5*3H2O (5), TbGd2.5(SSA)3.5*4H2O (6), TbGd3(SSA)4*5H2O (7), Tb10.5Cu3(SSA)12.5*30H2O (8), (NH4)1.5TbLa(SSA)2.5*4H2O (9), and (NH4)Tb2Cu(SSA)3*6H2O 10 (H3SSA= sulfosalicylic acid ), were obtained by reacting ammonium sulfosalicylate with terbium chloride; or with the mixed solution of TbCl3 and RECl3 (or CuCl2) (RE=La, Gd or Y). The compositions of these complexes and the fact that complexes 2～10 can be heteronuclear complexes or sosoloid from complexes and not usual mixture was confirmed by element analysis, IR, TGA and fluorescence analysis. Their luminescent properties were studied in a dimethyl sulfoxide(DMSO) solution (concentration: 1×10-3 and 1×10-4 mol*dm-3), and some infrequent results were obtained as follows: include, discovery of a synergistic effect between Tb3+ and Cu2+ in the 8; observation of the fluorescence quenching effect of NH4+ in the 9 and 10; the fact that the fluorescence of the mixture of Tb(SSA) and Gd(SSA) (molar ratio 1∶1.5) is more intense than that of complex 1; and the influence of the DMSO on fluorescence enhances effect for the solutions of complexes in DMSO.
欧阳亮1，顾超1，李俊然1，许明远1
(1.College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications, Peking University, Beijing 100871,China)
Abstract:The complex Tb(SSA)*H2O (1) and Tb2.5La (SSA)3.5*7H2O (2), TbY(SSA)2*2H2O (3), Tb1.5Gd(SSA)2.5*4H2O (4), TbGd1.5(SSA)2.5*3H2O (5), TbGd2.5(SSA)3.5*4H2O (6), TbGd3(SSA)4*5H2O (7), Tb10.5Cu3(SSA)12.5*30H2O (8), (NH4)1.5TbLa(SSA)2.5*4H2O (9), and (NH4)Tb2Cu(SSA)3*6H2O 10 (H3SSA= sulfosalicylic acid ), were obtained by reacting ammonium sulfosalicylate with terbium chloride; or with the mixed solution of TbCl3 and RECl3 (or CuCl2) (RE=La, Gd or Y). The compositions of these complexes and the fact that complexes 2～10 can be heteronuclear complexes or sosoloid from complexes and not usual mixture was confirmed by element analysis, IR, TGA and fluorescence analysis. Their luminescent properties were studied in a dimethyl sulfoxide(DMSO) solution (concentration: 1×10-3 and 1×10-4 mol*dm-3), and some infrequent results were obtained as follows: include, discovery of a synergistic effect between Tb3+ and Cu2+ in the 8; observation of the fluorescence quenching effect of NH4+ in the 9 and 10; the fact that the fluorescence of the mixture of Tb(SSA) and Gd(SSA) (molar ratio 1∶1.5) is more intense than that of complex 1; and the influence of the DMSO on fluorescence enhances effect for the solutions of complexes in DMSO.
Key words:rare earths; terbium; sulfosalicylic acid; complexes; luminescent;
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