Acta Cryst. (2005). E61, o72-o74  [ doi:10.1107/S1600536804031708 ]

(R)-(+)-(1-Hydroxy-3-phenylpropan-2-yl)trimethylammonium bromide sesquihydrate

F. Chen, Z.-M. Jin and M.-L. Hu

Abstract: In the title compound, C₁₂H₂₀NO⁺·Br^-·1.5H₂O, two crystallographically independent quaternary ammonium cations are associated by three very short C-H interactions with distances between the H atoms and the centroids of the benzene rings of 2.787  (8), 2.878  (7) and 2.932  (8)  Å. A one-dimensional hydrogen-bonded spiral is formed along the b axis by O-HBr hydrogen bonds. Neighboring spirals are interrelated by translation and held together mainly by hydrogen bonds and O-HO interactions. C-HO and C-HBr hydrogen bonds and C-H interactions play an important role in stabilizing the structure.

Online 11 December 2004

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