Bis­(cyano­guanidine)silver(I) nitrate–cyanoguanidine (1/1)

In the title compound, Ag(C₂H₄N₄)₂](NO₃)·C₂H₄N₄, the Ag atom is surrounded by three cyano­guanidine (cnge) mol­ecules. Two monodentate cnge mol­ecules form strong covalent Ag—N bonds of 2.210 (7) and 2.266 (6) Å through their nitrile N atoms. The third cnge mol­ecule is located in a vacant crystal site and is only weakly coordinated to the Ag atom as a solvate molecule. Inter‐ and intramolecular hydrogen bonds play an important role in the crystal packing.