Influence of La, Y, Gd, Cu, NH_4^+ Ions and DMSO on Luminescent Property of Terbium Complexes with Sulfosalicylate  

作　　者：许明远 顾超 李俊然 欧阳亮 

出　　处：《Journal of Rare Earths》2002年第5期348-353,共6页稀土学报（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina( 2 0 12 5 10 4;2 0 0 2 30 0 5 ) ;NationalKeyProjectforFun damentalResearch (G19980 6 130 5 )andtheExcellentYoungTeachersFundofMOE ;P .R .C .

摘　　要：The complex Tb(SSA)·H 2O (1) and Tb 2.5 La (SSA) 3.5 ·7H 2O (2), TbY(SSA) 2·2H 2O (3), Tb 1.5 Gd(SSA) 2.5 ·4H 2O (4), TbGd 1.5 (SSA) 2.5 ·3H 2O (5), TbGd 2.5 (SSA) 3.5 ·4H 2O (6), TbGd 3(SSA) 4·5H 2O (7), Tb 10.5 Cu 3(SSA) 12.5 ·30H 2O (8), (NH 4) 1.5 TbLa(SSA) 2.5 ·4H 2O (9), and (NH 4)Tb 2Cu(SSA) 3·6H 2O 10 (H 3SSA= sulfosalicylic acid ), were obtained by reacting ammonium sulfosalicylate with terbium chloride; or with the mixed solution of TbCl 3 and RECl 3 (or CuCl 2) (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 Tb 3+ and Cu 2+ in the 8; observation of the fluorescence quenching effect of NH 4 + 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.The complex Tb(SSA)·H 2O (1) and Tb 2.5 La (SSA) 3.5 ·7H 2O (2), TbY(SSA) 2·2H 2O (3), Tb 1.5 Gd(SSA) 2.5 ·4H 2O (4), TbGd 1.5 (SSA) 2.5 ·3H 2O (5), TbGd 2.5 (SSA) 3.5 ·4H 2O (6), TbGd 3(SSA) 4·5H 2O (7), Tb 10.5 Cu 3(SSA) 12.5 ·30H 2O (8), (NH 4) 1.5 TbLa(SSA) 2.5 ·4H 2O (9), and (NH 4)Tb 2Cu(SSA) 3·6H 2O 10 (H 3SSA= sulfosalicylic acid ), were obtained by reacting ammonium sulfosalicylate with terbium chloride; or with the mixed solution of TbCl 3 and RECl 3 (or CuCl 2) (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 Tb 3+ and Cu 2+ in the 8; observation of the fluorescence quenching effect of NH 4 + 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.

关 键 词：rare earths TERBIUM sulfosalicylic acid COMPLEXES LUMINESCENT 

分 类 号：O641.4[理学—物理化学]