Sensitization of europium(III) luminescence in bis(bipyridine) DTPA and DTTA-based ligands:: effect of the deletion of amide groups

被引：12

作者：

Couchet, JM ^{[1
]}

Azéma, JL ^{[1
]}

Tisnès, P ^{[1
]}

Picard, C ^{[1
]}

机构：

[1] Univ Toulouse 3, CNRS UMR 5068, Lab Synth & Physicochim Mol Interet Biol, F-31062 Toulouse 04, France

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2003年 / 6卷 / 07期

关键词：

europium chelates; luminescence; DTPA and DTTA derivatives; energy transfer;

D O I：

10.1016/S1387-7003(03)00162-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new ligands containing two 2,2'-bipyridine groups and derived from diethylenetriaminepentaacetic acid (DTPA) (1) or diethylenetriaminetriacetic acid (DTTA) (2) were synthesized and the luminescent properties of their europium(III) complexes were investigated in aqueous solutions. In the two systems, the 2,2'-bipyridine chromophores act as antenna for the sensitization of the lanthanide ion and are not coordinated to the metal. It is shown that the change in ligand structure from 1 to 2 creates a higher antenna-to-metal energy transfer, and consequently a better luminescence quantum yield. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：978 / 981

页数：4

共 21 条

[1] TERBIUM CHELATE FOR USE AS A LABEL IN FLUORESCENT IMMUNOASSAYS [J].