Acta Cryst. (2002). E58, o1397-o1399  [ doi:10.1107/S1600536802020676 ]

Guaninium dinitrate dihydrate

K. Bouchouit, N. Benali-Cherif, L. Benguedouar, L. Bendheif and H. Merazig

Abstract: In the asymmetric unit of the title compound, C₅H₇N₅O²⁺·2NO₃^-·2H₂O, the guanine base is diprotonated and cocrystallizes with two nitrate anions and two water molecules. The structure is a layered one, and in each layer all H atoms bonded to O and N atoms are involved in a two-dimensional hydrogen-bonding network. Short contacts are observed between parallel layers and ensure the cohesion of the crystals.

Online 22 November 2002

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