Poly[(μ(3)-hydrogenphosphato)(4H-1,2,4-triazole-κN (1))zinc]

The asymmetric unit of the title compound, [Zn(HPO(4))(C(2)H(3)N(3))](n), contains one Zn(2+) cation, one (HPO(4))(2−) anion and a 1,2,4 triazole ligand. The Zn(2+) cation is coordinated in a quite regular tetra­hedral geometry by O atoms from three phosphate groups and a tertiary N atom from the triazole ring. Each phosphate anion is connected to three Zn(II) cations, leading to a series of corrugated organic–inorganic layers parallel to the ac plane. The overall structure involves stacking of complex hybrid organic–inorganic layers along the b axis. Cohesion in the crystal is ensured by an infinite three-dimensional network of N—H⋯O and O—H⋯O hydrogen bonds between the phosphate groups and the triazole ligands.