Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 9 (September 2012)

organic compounds

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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