Experimental Crystal data

R factor = 0.029; wR factor = 0.084; data-to-parameter ratio = 15.8. The title molecule, C9H7ClN4OS, is almost planar, with an r.m.s. deviation of 0.034 (2) A ̊ for the mean plane through all the non-H atoms. Intramolecular N—H O and N—H N hydrogen bonds form S(6) and S(5) ring motifs, respectively. In the crystal, molecules are assembled into inversion dimers through pairs of co-operative N—H Cl interactions. These dimers are connected along the b axis by N—H O and N— H S hydrogen bonds, generating layers parallel to (103). The layers are further connected along the a axis into a three-dimensional network, through weak – stacking interactions [centroid–centroid distance = 3.849 (2) Å]. Related literature For the synthesis of the title compound, see: Qasem Ali et al. (2011). For similar hydrazinecarbothioamide crystal struc