Acta Cryst. (2008). E64, o683  [ doi:10.1107/S1600536808006144 ]

Biguanidinium dichloride

G. Portalone

Abstract: The asymmetric unit of the title compound, C₂H₉N₅²⁺·2Cl^-, is composed of one diprotonated biguanidinium cation and two chloride anions. The diprotonated cation consists of two planar halves twisted by 36.42 (6)°. The ions are associated in the crystal structure by extensive hydrogen bonding into a three-dimensional network; the diprotonated biguanidinium cation is hydrogen bonded to the chloride anions.

Online 7 March 2008

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