Acta Cryst. (2009). E65, o2602  [ doi:10.1107/S1600536809039099 ]

Bis(tetramethylammonium) oxalate monohydrate

Y.-X. Yang, Q. Li and S. W. Ng

Abstract: In the crystal structure of the title hydrated salt, 2C₄H₁₂N⁺·C₂O₄^2-·H₂O, the two independent cations, the anion and the water molecule all lie on special positions of m site symmetry. In both cations, the mirror plane passes through the nitrogen atom and two methyl groups; in the anion, the mirror plane passes through two carbon and two oxygen atoms. The anions and water molecules interact by O-HO hydrogen bonding, forming a chain running along the b axis.

Online 3 October 2009

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