✦ LIBER ✦

Improvement of stability and luminescence properties in water of Eu(III) and Tb(III) complexes photosensitized by a bipyridine antenna

✍ Scribed by Jean Marc Couchet; Chantal Galaup; Pierre Tisnès; Claude Picard

Publisher: Elsevier Science
Year: 2003
Tongue: French
Weight: 194 KB
Volume: 44
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(03)01146-8

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✦ Synopsis

The convenient synthesis of a new macrocyclic octadentate chelate based on 2,2%-bipyridine chromophore and diethylenetriaminetriacetic acid core is described. In aqueous solutions, the corresponding Eu(III) and Tb(III) neutral complexes are kinetically inert and show very bright luminescence when excited with UV radiation (F=11 and 25% respectively). We also report the potentiality of these complexes to act as donors in delayed fluorescence resonance energy transfer (DEFRET).

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

✍ Chantal Galaup; Marie-Christine Carrié; Joëlle Azéma; Claude Picard 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 281 KB

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'-bipyridine unit) is described. It is shown that the corresponding Eu(IlI) complex bearing a single positive charge and incorporati