Eu (III) complex of a macrocyclic ligand derived from 2, 2′-bipyridine and iminodiacetic acid: Synthesis, luminescence and phosphate diester transesterification …

C Galaup, MC Carrié, J Azéma, C Picard

Index: Galaup, Chantal; Carrie, Marie-Christine; Azema, Joelle; Picard, Claude Tetrahedron Letters, 1998 , vol. 39, # 12 p. 1573 - 1576

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Citation Number: 12

Abstract

A very convenient synthesis of a macrocyclic ligand bearing two endocyclic amide and two exocyclic carboxylate groups (lanthanide binding sites) and one sensitizer (2, 2′-biphridine unit) is described. It is shown that the corresponding Eu (III) complex bearing a single positive charge and incorporating two water molecules in the first coordination sphere of the metal ion is strongly fluorescent on the basis of energy-transfer luminescence (Φ= 0.36 in ...