Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 11 (November 2013)

organic compounds

Acta Cryst. (2013). E69, o1609    [ doi:10.1107/S1600536813026779 ]

4-Nitro­anilinium 3-carb­oxy-4-hy­droxy­benzene­sulfonate monohydrate

P. K. Sivakumar, M. K. Kumar, G. Chakkaravarthi, R. M. Kumar and R. Kanagadurai

Abstract: In the title hydrated salt, C6H7N2O2+·C7H5O6S-·H2O, the benzene ring of the cation makes a dihedral angle of 1.32 (19)° with the attached nitro group. In the anion, an intra­molecular O-H...O hydrogen bond with an S(6) ring motif is formed between the carb­oxyl and hy­droxy groups; the dihedral angle between the carb­oxyl group and the benzene ring is 8.76 (8)°. The crystal structure exhibits inter­molecular N-H...O, O-H...O, C-H...O, and [pi]-[pi] [centroid-centroid distances = 3.6634 (9) and 3.7426 (9) Å] inter­actions to form a three-dimensional network.

CCDC reference: 963644

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