Acta Cryst. (2007). E63, m900-m901  [ doi:10.1107/S1600536807008392 ]

2-Methylpiperazinium bis(dihydrogenarsenate)

H. S. Wilkinson and W. T. A. Harrison

Abstract: The title compound, C₅H₁₄N₂²⁺·2H₂AsO₄^-, contains a network of centrosymmetric doubly protonated 2-methylpiperazinium cations, showing disorder of the methyl group, accompanied by dihydogenarsenate anions. The component species interact by way of cation-to-anion N-HO and anion-to-anion O-HO hydrogen bonds, the latter leading to infinite sheets of the H₂AsO₄^- anions containing R₆⁶(24) supramolecular loops.

Online 28 February 2007

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