Di-μ-azido-κ(4) N:N-bis­{aqua­[bis­(1H-benzimidazol-2-ylmeth­yl)amine]­copper(II)} dinitrate

In the centrosymmetric dinuclear title complex, [Cu(2)(N(3))(2)(C(16)H(15)N(5))(2)(H(2)O)(2)](NO(3))(2), the Cu(II) ion is in a distorted octa­hedral coordination environment with long axial Cu—N(azide) [2.821 (6) Å] and Cu—O(water) [2.747 (5) Å] bonds as a result of the Jahn–Teller effect. Two symmetry-related azide ligands bridge in μ(2)-modes giving a Cu⋯Cu distance of 3.533 (2) Å. In the crystal, N—H⋯O and O—H⋯O hydrogen bonds link the components into a three-dimensional network. In addition, there are weak inter­molecular C—H⋯N hydrogen bonds and π–π stacking inter­actions with centroid–centroid distances ranging from 3.562 (2) to 3.974 (2) Å.