Energetic Materials: the Biguanidium Nitrates

The structures of two new potentially energetic biguanidium salts, biguanidium nitrate, C₂H₈N₅⁺.NO₃^- [(BIGH)NO₃] and biguanidium dinitrate, C₂H₉N₅²⁺.2NO₃^- [(BIGH₂)(NO₃)₂] have been determined from X-ray data collected at 193 K. The mono- and diprotonated biguanidium nitrates are dense organic materials with efficient packing of planar anions and biplanar (twisted) cations connected by multiple hydrogen bonds. The experimental densities are compared with those obtained from empirical calculations.

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