Acta Cryst. (2008). E64, o1967  [ doi:10.1107/S1600536808029565 ]

Hydroxonium 1-ammonioethylidene-1,1-bisphosphonate

Y. Wu and D.-L. Yin

Abstract: The title compound, H₃O⁺·C₂H₈NO₆P₂^-, contains a disordered H₃O⁺ cation and an NH₃C(CH₃)(PO₃H)₂ anion. The three H atoms of the H₃O⁺ cation are statistically distributed over four positions with occupancies of 0.75, resulting in a pseudo tetrahedron. Multiple N-HO and O-HO hydrogen bonds generate an intricate three-dimensional network.

Online 20 September 2008

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