Journal
INORGANIC CHEMISTRY
Volume 44, Issue 4, Pages 840-842Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ic0483895
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We report the first combined optical and structural investigation of the water free Er-quinolinolate complex, an organo-lanthanide system of interest for 1.5-mum telecom applications. Structural data demonstrate that the complex has a trinuclear structure (Er(3)Q(9)) which provides the Er metals with an octa-coordination by the organic ligand and prevents solvent and water molecules from entering the lanthanide coordination sphere. The results of the structural analysis allow us to infer that the strong Er luminescence quenching exhibited by the Er(3)Q(9) complex is due uniquely to resonant energy transfer to the aromatic C-H vibrations of the ligand, providing the correct tools to design more efficient emitters.
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