1-(6-Chloro-1,3-benzothiazol-2-yl)hydrazine

Abstract

Key indicators: single-crystal X-ray study; T = 100 K; mean (C-C) = 0.001 Å; R factor = 0.019; wR factor = 0.052; data-to-parameter ratio = 23.8.The asymmetric unit of the title compound, C 7 H 6 ClN 3 S, 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 À9.96 (13) , respectively, in molecule A and 172.50 (9) and À7.43 (13) , respectively, in molecule B. In the crystal, neighbouring molecules are connected via pairs of N-HÁ Á ÁN hydrogen bonds, generating R 2 2 (8) ring motifs, and are connected further by N-HÁ Á ÁN 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). Related literature

Expected and unexpected products of reactions of 2-hydrazinylbenzothiazole with 3-nitrobenzenesulfonyl chloride in different solvents

“…A survey of of the Cambridge Structural Database (Groom et al, 2016: updated (Fun et al, 2012a) and LEFTEX (Fun et al, 2012b). No hits for benzenesulfonylhydrazino-benzothiazoles were recorded.…”