Acta Cryst. (2006). E62, o1067-o1069  [ doi:10.1107/S1600536806005083 ]

N,N'-Diphenylguanidinium phthalate

P. S. Pereira Silva, M. Ramos Silva, A. Matos Beja and J. A. Paixão

Abstract: The cation of the title salt, C₁₃H₁₄N₃⁺·C₈H₅O₄^-, adopts a conformation with one of the phenyl rings lying syn and the other anti with respect to the unsubstituted N atom. The anion features a strong intramolecular hydrogen bond, with the carboxyl groups twisted out of the ring plane. Intermolecular hydrogen-bonds link anions and cations, forming chains that run parallel to the c axis.

Online 17 February 2006

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