Syntheses, Structures, and Fluorescence of Two Novel 2D Zinc(II) Layered Frameworks Based on 3-Amino-1, 2, 4-triazole

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.