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Acta Cryst. (2012). E68, o2661
[ doi:10.1107/S160053681203437X ]

4-Hydroxybenzamide 1,4-dioxane hemisolvate

S. Tothadi and G. R. Desiraju

Abstract: The asymmetric unit of the title compound, C7H7NO2·0.5C4H8O2, is composed of one 4-hydroxybenzamide molecule and half of a 1,4-dioxane molecule. The complete dioxin molecule is generated by crystallographic inversion symmetry. The crystal has an extensive system of hydrogen bonds, in which the three donor H atoms are fully utilized: these result in amide-amide homodimers, and N-H...O(dioxane) and O-H...O(amide) links.

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