Acta Crystallographica Section E

Structure Reports Online

Volume 70, Part 2 (February 2014)

organic compounds


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Acta Cryst. (2014). E70, o217-o218    [ doi:10.1107/S1600536813033217 ]

1-Aza­niumyl­cyclo­butane-1-carboxyl­ate monohydrate

R. J. Butcher, G. Brewer, A. S. Burton and J. P. Dworkin

Abstract: In the title compound, C5H9NO2·H2O, the amino acid is in the usual zwitterionic form involving the [alpha]-carboxyl­ate group. The cyclo­butane backbone of the amino acid is disordered over two conformations, with occupancies of 0.882 (7) and 0.118 (7). In the crystal, N-H...O and O-H...O hydrogen bonds link the zwitterions [with the water molecule involved as both acceptor (with the NH3+) and donor (through a single carboxylate O from two different aminocyclobutane carb­oxylate moities)], resulting in a two-dimensional layered structure lying parallel to (100).

CCDC reference: 953405

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