Acta Cryst. (2003). E59, m739-m741  [ doi:10.1107/S1600536803017239 ]

Propane-1,2-diammonium hydrogenarsenate monohydrate

C. Lee and W. T. A. Harrison

Abstract: The title compound, [H₃NCH₂CH(NH₃)CH₃][HAsO₄]·H₂O, contains a network of doubly protonated propane-1,2-diammonium cations, hydrogenarsenate anions [d_av(As-O) = 1.682  (1)  Å] and water molecules. Crystal symmetry generates a racemic mixture of the two enantiomers of the organic species. The crystal packing is controlled by N-HO [d_av(HO) = 1.89  Å, _av(N-HO) = 167° and d_av(NO) = 2.760  (1)  Å] and O-HO [d_av(HO) = 1.86  Å, _av(O-HO) = 175° and d_av(OO) = 2.712  (1)  Å] hydrogen bonds. It is isostructural with its hydrogenphosphate congener.

Online 15 August 2003

Copyright © International Union of Crystallography
IUCr Webmaster