Influence of the anion ratio in the composition of mixed benzoate/pentafluorobenzoate complexes of europium on the structure and photoluminescent properties
Maxim A. Shmelev, Anastasia A. Levina, Aleksandr S. Chistyakov, Evgenia A. Varaksina, Julia К. Voronina, G. A. Razgonyaeva, Ilya V. Taidakov, Alexey A. Sidorov, И.Л. Еременко
Abstract
Mixed carboxylate benzoate (bz)/pentafluorobenzoate (pfb) complexes with different ratios of pfb and bz anions in the {Eu(EtOH)<sub>2</sub>(pfb)(bz)<sub>2</sub>}<sub>n</sub> and {Eu(EtOH)(pfb)<sub>2</sub>(bz)}<sub>n</sub> compositions were obtained and structurally characterized. Changes in the pfb/bz ratio lead to changes in the geometry of the polymer chains and the lanthanide polyhedron, as well as to a rearrangement of the system of non-covalent interactions, which also affects the photoluminescent properties. The synthesized compounds were characterized by X-ray diffraction study, IR spectroscopy and CHN analysis; non-covalent interactions were analyzed using Hirshfeld surface analysis.