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CitationÇolak, N., Yıldırır, Y., Tercan, B., Ermiş, E., Hökelek, T. (2010). 4-[2-(2, 2-Dimethyl-4, 6-dioxo-1, 3-dioxan-5-ylidene) hydrazin-1-yl] benzonitrile. Acta Crystallographica Section E: Structure Reports Online, 66(7), o1784-o1785.
In the title compound, C 13H 11N 3O 4, the dioxane ring adopts an envelope conformation with the C atom bonded to the dimethyl group in the flap position [deviation = 0.613 (1) Å]. The nitrile group and the attached benzene ring are roughly coplanar [maximum deviation = 0.087 (1) Å]. An intra-molecular N-H...O hydrogen bond involving the hydrazinyl group generates an S(6) ring. The N-N and C-N bond lengths indicate that the compound may be a mixture of the azo and hydrazone tautomeric forms but the presence of the N-bound H atom supports the hydrazone form. The crystal structure is stabilized by weak inter-molecular C-H...O, C-H...N and C-H...π inter-actions.