organic compounds
Open access
The seven-membered fused-ring in the title compound, C10H10N2O·H2O, adopts a boat conformation (with the two phenylene C atoms representing the stern and the methylene C atom the prow). In the crystal, two benzodiazepinone molecules are linked about a center of inversion by diazepine–carbonyl N—HO hydrogen bonds. The dimers are further linked by water–diazepine O—HN hydrogen bonds, forming a linear chain.
organic compounds
Open access
In the title N-substituted benzimidazol-2-one, C10H10N2O, the fused ring system is almost planar (r.m.s. deviation = 0.01 Å) and aligned at 57.9 (1)° with respect to the propenyl fragment. In the crystal, adjacent molecules are linked by pairs of N—HO hydrogen bonds into inversion dimers.