Two 2D zinc(II) layered coordination polymer compounds [Zn2(atz)2(na)2]n (1), and [Zn(atz)(ina)]n (2) (Hatz = 3‐amino‐1H‐1, 2, 4‐triazole, na = nicotinic acid, ina = isonicotinic acid) were synthesized and structurally characterized by elemental analysis, FT‐IR, thermogravimetric analysis (TGA), powder X‐ray diffraction (PXRD), and single‐crystal X‐ray diffraction. The interconnection of a coplanar six‐membered hexagonal ring and a 16‐membered non‐planar chair‐like ring results in a 2D sheet with (4, 82) topological network. Hydrogen bonds connect the neighboring planes into 3D supramolecular architectures. Furthermore, both complexes exhibit strong luminescent properties in the solid state at room temperature.
Three novel compounds, {[Ln(Hbidc)(ox)0.5(H2O)]·H2O}n [Ln = Pr (1), Sm (2), Eu (3)] were synthesized by hydrothermal reaction of 1H‐benzimidazole‐5, 6‐dicarboxylic acid (H3bidc) and oxalate (ox) with Ln(NO3)3·6H2O in the presence of NaOH solution at 180 °C, and were structurally characterized by elemental analysis, FT‐IR, thermogravimetric analysis (TGA), and powder X‐ray diffraction (PXRD). Single crystal X‐ray diffraction analysis reveal that all the compounds are isomorphous, displaying 3D networks with 9‐connected topology based on the linkages of 2D layers and 1D zigzag chains. In addition, complex 3 exhibits strong luminescent property in the solid state at room temperature.
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