Acta Cryst. (2007). E63, o126-o128  [ doi:10.1107/S1600536806051245 ]

1,4-Phenylenediammonium bis(hydrogen phthalate)

K.-W. Wang, H. Zhang and L.-Q. Shen

Abstract: The title compound, C₆H₁₀N₂²⁺·2C₈H₅O₄^-, is a proton-transfer compound obtained from 1,4-phenylenediamine and phthalic acid. The asymmetric unit contains half of a centrosymmetric cation and an anion. A strong intramolecular O-HO hydrogen bond is found in the anion. The cations and anions are linked through a number of intermolecular N-HO hydrogen bonds, forming a three-dimensional network.

Online 6 December 2006

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