Bis[2-(1H-imidazol-2-yl-κN)-1H-imidazol-3-ium]silver(I) trinitrate.

The synthesis of the title salt, [Ag(C(6)H(7)N(4))(2)](NO(3))(3), was carried out employing a 1:2 molar ratio of 2,2'-biimidazole and silver nitrate respectively. The cation has crystallographically-imposed C2 symmetry with the metal atom in an almost linear coordination environment [N-Ag-N = 177.01 (17)°]. The crystal structure displays N-H⋯O and C-H⋯O hydrogen-bonding inter-actions.