Di­aqua­bis­[5-(pyrazin-2-yl-κN (1))-3-(pyridin-3-yl)-1,2,4-triazolido-κN (1)]zinc

In the title compound, [Zn(C(11)H(7)N(6))(2)(H(2)O)(2)], the Zn(II) cation, located on an inversion center, is N,N′-chelated by two 5-(pyrazin-2-yl)-3-(pyridin-3-yl)-1,2,4-triazolide anions and is further coordinated by two water mol­ecules in a distorted N(4)O(2) octa­hedral geometry. In the anionic ligand, the pyrazine and pyridine rings are twisted with respect to the central triazole ring by 5.77 (10) and 11.54 (10)°, respectively. In the crystal, classical O—H⋯N and weak C—H⋯O hydrogen bonds and π–π stacking inter­actions between aromatic rings [the centroid–centroid distances between triazole and pyrazine rings, and between triazole and pyridine rings are 3.623 (2) and 3.852 (2) Å, respectively] connect the mol­ecules into a three-dimensional supra­molecular architecture.