Acta Cryst. (2013). E69, o1851-o1852 [ doi:10.1107/S1600536813031917 ]
Abstract: The title salt crystallized as the monohydrate C15H16NO2+·C6H4BrSO3-·H2O. The cation exists in an E conformation with respect to the ethynyl bond and is essentially planar, with a dihedral angle of 6.52 (14)° between the pyridinium and the benzene rings. The hydroxy and methoxy substituents are coplanar with the benzene ring to which they are attached, with an r.m.s. deviation of 0.0116 (3) Å for the nine non-H atoms [Cmethyl-O-C-C torsion angle = -0.8 (4)°]. In the crystal, the cations and anions are stacked by - interactions, with centroid-centroid distances of 3.7818 (19) and 3.9004 (17) Å. The cations, anions and water molecules are linked by O-HO hydrogen bonds and weak C-HO interactions, forming a three-dimensional network.
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