The title compound, C6H14N22+·2C7H4NO4-·2.17H2O, is a hydrated molecular salt. The cation has crystallographic twofold rotation symmetry, and the component species interact by way of bifurcated N-H center dot center dot center dot (O, N) hydrogen bonds to result in associations of two anions and one cation. The anion is stabilized by an intramolecular O-H center dot center dot center dot O bond. The water molecules are disordered and occupy  pseudo channels in the structure.
|Number of pages||9|
|Journal||Acta Crystallographica Section E: Structure Reports Online|
|Publication status||Published - Dec 2007|