Acta Cryst. (2012). E68, o691-o692 [ doi:10.1107/S1600536812005442 ]
Abstract: The asymmetric unit of the title compound, C7H6ClN3S, consists of two crystallographically independent molecules (A and B). The dihedral angle between the benzothiazole ring system and the hydrazine group is 8.71 (6)° in molecule A and 7.16 (6)° in molecule B. The N-N-C-N and N-N-C-S torsion angles involving the hydrazine group are 170.89 (9) and -9.96 (13)°, respectively, in molecule A and 172.50 (9) and -7.43 (13)°, respectively, in molecule B. In the crystal, neighbouring molecules are connected via pairs of N-HN hydrogen bonds, generating R22(8) ring motifs, and are connected further by N-HN hydrogen bonds into sheets lying parallel to the ab plane. The crystal studied was an inversion twin, the refined ratio of the twin components being 0.50 (3):0.50 (3).
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