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Acta Cryst. (2003). E59, o480-o482  [ doi:10.1107/S1600536803004859 ]

n-Undecylammonium bromide monohydrate

G. J. Kruger, M. Rademeyer and D. G. Billing

Abstract: n-Undecylammonium bromide crystallizes from solution as the monohydrate, C11H23NH3+·Br-·H2O, the structure containing alternating ionic and hydrocarbon layers. The water molecules are incorporated into the ionic layer and they interact, via hydrogen bonds, with the bromide anions and the terminal ammonium groups. The non-polar methylene chains are fully extended with all-trans conformations. The molecules pack as parallel and interdigitated cylinders, roughly perpendicular to the layers.

Online 21 March 2003


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