Hydrothermal in situ ligand synthesis and self-assembly of a 3D pillar–layer framework with 2-fold interpenetrated pcu topology

A new compound, namely [Zn1.5(pbdc)(ATAZ)(OH)]n (1 H2pbdc = terephthalic acid, HATAZ = 3-amino-1,2,4-triazole), has been obtained by in situ aminotriazole ligand synthesis and characterized by elemental analysis, thermal analysis, as well as single crystal and powder X-ray diffraction analysis. Compound 1 exhibits a 3D pillar–layer framework based on Zn(II)-aminotriazole layers and pbdc pillars, which can be simplified into a 2-fold interpenetrated pcu topological network. Interestingly, two ATAZ ligands and two OH− ligands bridge three Zn(II) ions together, giving rise to a new trinuclear {Zn3(ATAZ)2(OH)2} subunit. In addition, the luminescent and thermal stability properties for the title compound have also been studied.