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Near Infrared Luminescence of Lanthanides in Complexes with Organic Dyes

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Abstract

Spectral-luminescence characteristics of Yb3+ and Nd3+ ions in water solutions of their complexes with some organic dyes of sulfophenylphthalexones group have been considered. Complexes can be efficiently excited with visible light (λexc = 532 nm). 4f-Luminescence as a result of energy transfer from the dye moiety to the lanthanide ion was shown. Complexation of new polydentate ligand L of sulfophenylphthalexones type increases the luminescence lifetimes because of the reduced solvation of the ion by water. They were determined as 12.60 μs for complex Yb-L and 1.45 μs for Nd-L.

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Authors and Affiliations

  1. A. V. Bogatsky Physico-Chemical Institute, National Academy of Sciences of Ukraine, 65080, Odessa, Ukraine

    Yurii Korovin & Natalia Rusakova

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  1. Yurii Korovin
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  2. Natalia Rusakova
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Korovin, Y., Rusakova, N. Near Infrared Luminescence of Lanthanides in Complexes with Organic Dyes. Journal of Fluorescence 12, 159–161 (2002). https://doi.org/10.1023/A:1016888112304

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