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    Features of the Preparation and Luminescence of Langmuir-Blodgett Films Based on the Tb(III) Complex with 3-Methyl-1-phenyl-4-stearoylpyrazol-5-one and 2,2 '-Bipyridine

    Year: 2022

    Journal: Materials, Volume 15, FEB

    Authors: Devterova, Julia; Kirillov, Kirill; Nikolaev, Anton; Sokolov, Michail; Shul'gin, Victor; Gusev, Alexey; Panyushkin, Victor; Linert, Wolfgang

    Organizations: Ministry of Education and Science of the Russian Federation [FZEN-2020-0022]

    Keywords: complex compound; terbium; 4-stearoylpyrazol-5-one; Langmuir film; Langmuir-Blodgett film; luminescence; IR microscopy

    In this study, we investigated the effect of terbium ions (Tb3+) on the subphases of the limiting area of the molecule for the complex compound (CC) TbL3 center dot bipy (where HL is 3-methyl-1-phenyl-4-stearoylpyrazol-5-one and bipy is 2,2 '-bipyridine). We examined the Langmuir monolayer and the change in the luminescence properties of TbL3 center dot bipy-based Langmuir-Blodgett films (LBFs). The analysis of the compression isotherms, infrared, and luminescence spectra of TbL3 center dot bipy LBFs was performed by varying the concentration of Tb3+ in the subphases. Our results demonstrate the partial dissociation of the CC at concentrations of C(Tb3+) < 5 x 10(-4) M.
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