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] (8), it was shown that mixed-anionic compounds can be obtained by combining the more flexible 1-naphthaleneacetate (1-NAA) and pfb anions. In compounds 3 and 6, some anion positions are disordered because both 1-nap and pfb anions occupy the same positions in varying ratios. The examples demonstrate that careful optimization of non-covalent interactions enables precise control over the structure and physicochemical properties of these coordination compounds, resulting in improved luminescent performance. The obtained compounds were characterized by single-crystal and powder X-ray diffraction, luminescence spectroscopy, infrared (IR) spectroscopy, and elemental (CHN) analysis. The photoluminescent properties were studied for the solid-state samples. Additionally, the density functional theory (DFT) method was employed to model the frontier molecular orbitals of the complexes and analyze their electronic structures.
Levina et al. (Mon,) studied this question.