In the title compound, [Zn(C12H8N3) 2(H2O)], the Zn atom is chelated by two heterocycles, and the coordinating N atoms comprise the basal plane of the square-pyramidal environment. The apical position is occupied by an aqua ligand. The complexes are linked by O-H⋯O hydrogen bonds into a ribbon structure along the a axis. © 2005 International Union of Crystallograph...
