1,2,4-Triazine method of bipyridine ligand synthesis for the preparation of new luminescent Eu (III) complexes

Anton Prokhorov, Valery Kozhevnikov, Dmitry Kopchuk, Hélène Bernard, Nathalie Le Bris, Raphaël Tripier, Henri Handel, Burkhard Koenig, Dmitry Kozhevnikov

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41 Citations (Scopus)

Abstract

The ‘triazine’ methodology for the synthesis of functionalized bipyridine ligands proved to be a convenient method for the preparation of luminescent Eu(III) complexes. The approach allows flexible construction of chromophore and coordination sphere with control of photophysical properties. Europium(III) complexes [Eu1]–[Eu5] prepared in this way exhibit intense long-life metal-centered luminescence in aqueous media. The aromatic substituent in the position 5 of bipyridine has a significant influence on luminescence parameters and is used to introduce functionality for bioconjugation. The complexes [Eu4] and [Eu5] bearing primary amine groups are ready-to-go luminescent ‘tags’ for peptide labeling.
Original languageEnglish
Pages (from-to)597-607
JournalTetrahedron
Volume67
Issue number3
DOIs
Publication statusPublished - 2011

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