Bis(4-amino-3,5-di-2-pyridyl-1,2,4-triazole-κ(2) N (1),N (5))diaqua­zinc(II) dinitrate

The asymmetric unit of the title compound, [Zn(C(12)H(10)N(6))(2)(H(2)O)(2)](NO(3))(2), contains one-half of the complex molecule and one NO(3) (−) anion. The Zn(II) ion displays a distorted tetra­gonal-pyramidal geometry with four N atoms from two chelating 4-amino-3,5-di-2-pyridyl-1,2,4-triazole (2-bpt) lig­ands in the basal plane and one water mol­ecule occupying the apical site. Another water mol­ecule at the opposite of the apical site has a weak inter­action with the Zn(II) ion [Zn—O = 2.852 (5) Å]. The Zn(II) ion and the two water mol­ecules lie on a twofold rotation axis. An extensive system of hydrogen bonds involving the NH(2) groups of the 2-bpt ligands, water mol­ecules and nitrate anions links all residues into a three-dimensional network.