(μ-3,5,9,11-Tetra­oxo-4,10-diaza­tetra­cyclo­[5.5.2.0(2,6).0(8,12)]tetra­dec-13-ene-4,10-diido-κ(2) N:N′)bis­[(2,2′-bipyridine-κ(2) N,N′)silver(I)] dihydrate

In the title complex, [Ag(2)(C(12)H(8)N(2)O(4))(C(10)H(8)N(2))(2)]·2H(2)O, the Ag(I) ion is three-coordinated by two N atoms from a chelating 2,2′-bipyridine ligand and one N atom from an imide ligand in a Y-shaped fashion. The imide ligand and the complex lie on a twofold rotation axis. The ligand bridges two Ag(I) ions, forming a dinuclear complex. In the crystal, O—H⋯O hydrogen bonds link the lattice water mol­ecules and the complex mol­ecules into a ribbon-like structure along [001]. π–π inter­actions are observed between the pyridine rings [centroid–centroid distance = 3.8289 (14) Å].