Acta Cryst. (2008). E64, o1947-o1948  [ doi:10.1107/S1600536808029115 ]

4,4'-Methylenedianilinium bis(3-carboxy-4-hydroxybenzenesulfonate) monohydrate

G. Du, Z. Liu, Q. Chu, Z. Li and S. Zhang

Abstract: Co-crystallization of 4,4'-methylenediphenylamine (MDA) and 5-sulfosalicylic acid (5-H₂SSA) yields the title salt, C₁₃H₁₆N₂²⁺·2C₇H₅O₆S^-·H₂O. The asymmetric unit is comprised of one dication, two anions and one water molecule. In the crystal structure, the components of the salt are linked by a combination of intermolecular O-HO, N-HO and weak C-HO hydrogen bonds into a three-dimensional framework. In addition, two weak - interactions [with centroid-centroid distances of 3.8734 (15) and 3.7465 (15) Å] and one C-H interaction further stabilize the crystal structure.

Online 17 September 2008

Copyright © International Union of Crystallography
IUCr Webmaster