Acta Cryst. (2003). E59, o2015-o2017  [ doi:10.1107/S1600536803026813 ]

Hydrogen-bonding patterns in 4,4'-bipyridinium bis(3-carboxy-4-hydroxybenzenesulfonate) dihydrate

P. T. Muthiah, M. Hemamalini, G. Bocelli and A. Cantoni

Abstract: In the title compound, C₁₀H₁₀N₂²⁺·2C₇H₅O₆S^-·2H₂O, 4,4'-bipyridine is centrosymmetric and protonated at both N atoms. The inversion-related hydrogen-bonded supramolecular chains (made up of water molecules and sulfonate motifs arranged in an alternating manner) are cross-linked by 4,4'-bipyridinium cations via N-HO (sulfonate) hydrogen bonds.

Online 29 November 2003

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