Experimental Crystal data

R factor = 0.045; wR factor = 0.125; data-to-parameter ratio = 10.0. The asymmetric unit of the title compound, C10H11ClN2O, contains two molecules. The non-H atoms of each molecule lie approximately on a plane (r.m.s. deviations = 0.062 and 0.110 Å), and the C N double bond has a Z-configuration in both independent molecules. In the crystal, adjacent mol-ecules are linked by N—H Ocarbonyl hydrogen bonds, forming chains running along [100]. Related literature For the synthesis, see: Benincori et al. (1990); Sayed et al. (2002). For background to the title compound, see: Asiri et al. (2010)