Acta Cryst. (2009). E65, o1276  [ doi:10.1107/S1600536809017048 ]

4-(Dimethylamino)pyridinium tribromide: whole molecule disorder of cation and anion

S. W. Ng

Abstract: In the title salt, C₇H₁₁N₂⁺·Br₃^-, the cation and the near-linear anion [Br-Br-Br = 179.41 (8)°] both show whole-molecule disorder about crystallographic twofold rotation axes. The cation is weakly hydrogen-bonded to the anion by an N-HBr interaction. The crystal studied was found to be a racemic twin, with a twin component of nearly 50%.

Online 14 May 2009

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