Acta Cryst. (2012). C68, o33-o36 [ doi:10.1107/S0108270111054692 ]
Abstract: Crystals of bis(2-ethyl-3-hydroxy-6-methylpyridinium) succinate-succinic acid (1/1), C8H12NO+·0.5C4H4O42-·0.5C4H6O4, (I), and 2-ethyl-3-hydroxy-6-methylpyridinium hydrogen succinate, C8H12NO+·C4H5O4-, (II), were obtained by reaction of 2-ethyl-6-methylpyridin-3-ol with succinic acid. The succinate anion and succinic acid molecule in (I) are located about centres of inversion. Intermolecular O-HO, N-HO and C-HO hydrogen bonds are responsible for the formation of a three-dimensional network in the crystal structure of (I) and a two-dimensional network in the crystal structure of (II). Both structures are additionally stabilized by - interactions between symmetry-related pyridine rings, forming a rod-like cationic arrangement for (I) and cationic dimers for (II).
Formula: C8H12NO+·0.5C4H4O42-·0.5C4H6O4 and C8H12NO+·C4H5O4-
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