Synthesis and properties of new luminescent amphiphilic Tb(III) complexes [TbL 3 Á2H 2 O]Á3H 2 O, TbL 3 Ábipy, [H 3 O][TbL 4 ]Á6H 2 O and [H 3 O][TbL 0 3 L]ÁH 2 O, where HL is 1-phenyl-3-methyl-4-stearoylpyrazolone-5 and HL 0 is 1-phenyl-3-methyl-4-formylpyrazolone-5, are reported. The complexes have been characterized by elemental and thermal analysis, FTIR and luminescence spectroscopy methods. Formation and properties of Langmuir-Blodgett films of the complexes are described.
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∙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∙bipy-based Langmuir-Blodgett films (LBFs). The analysis of the compression isotherms, infrared, and luminescence spectra of TbL3∙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 × 10−4 M.
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