Bis[μ-1,2-bis­(1H-imidazol-1-ylmeth­yl)benzene-κ(2) N (3):N (3′)]disilver(I) bis­(4-carb­oxy­naphthalene-1-carboxyl­ate) tetra­hydrate

In the title compound, [Ag(2)(C(14)H(14)N(4))(2)](C(12)H(7)O(4))(2)·4H(2)O, the dinuclear dication has crystallographically imposed inversion symmetry. Each Ag(I) ion is bicoordinated in a slightly distorted linear coordination geometry by the N atoms of two ligands, resulting in the formation of a 22-membered metallamacrocycle. In the dication, π–π inter­actions are observed between the imidazole rings, with centroid–centroid distances of 3.528 (3) Å and dihedral angles of 9.92 (9)°. The crystal structure is stabilized by inter­molecular O—H⋯O hydrogen bonds and π–π inter­actions involving the benzene rings of adjacent dications, with centroid–centroid distances of 3.651 (2) Å.