Novel terpyridine macrocyclic complexing agent and luminescence of its neutral Ln(III) complexes (Ln=Eu, Tb, Sm, Dy) in aqueous solution

被引：40

作者：

Galaup, C ^{[1
]}

Couchet, JM ^{[1
]}

Picard, C ^{[1
]}

Tisnes, P ^{[1
]}

机构：

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

来源：

TETRAHEDRON LETTERS | 2001年 / 42卷 / 36期

关键词：

azamacrocycles; lanthanides; luminescence; neutral complexes; terpyridine;

D O I：

10.1016/S0040-4039(01)01243-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A very convenient synthesis of an 18-membered triaza-macrocyclic ligand bearing one endocyclic terpyridine unit and three acetate pendant groups is reported. This nonadentate ligand forms very stable neutral lanthanide complexes in aqueous solution and efficiently shields the metal ion from the water environment. In this medium the Eu(III) and Tb(III) complexes are strongly fluorescent through an energy-transfer luminescence pathway (tau similar to 1 ms and Phi similar to 20%). (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：6275 / 6278

页数：4

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