N'-(1,3-Benzo-thia-zol-2-yl)benzene-sulfono-hydrazide: crystal structure, Hirshfeld surface analysis and computational chemistry.

ABSTRACT: The asymmetric unit of the title compound, C13H11N3O2S2, comprises two independent mol-ecules (A and B); the crystal structure was determined by employing synchrotron radiation. The mol-ecules exhibit essentially the same features with an almost planar benzo-thia-zole ring (r.m.s. deviation = 0.026 and 0.009?Å for A and B, respectively), which forms an inclined dihedral angle with the phenyl ring [28.3?(3) and 29.1?(3)°, respectively]. A difference between the mol-ecules is noted in a twist about the N-S bonds [the C-S-N-N torsion angles = -56.2?(5) and -68.8?(5)°, respectively], which leads to a minor difference in orientation of the phenyl rings. In the mol-ecular packing, A and B are linked into a supra-molecular dimer via pairwise hydrazinyl-N-H?N(thiazol-yl) hydrogen bonds. Hydrazinyl-N-H?O(sulfon-yl) hydrogen bonds between A mol-ecules assemble the dimers into chains along the a-axis direction, while links between centrosymmetrically related B mol-ecules, leading to eight-membered {?HNSO}2 synthons, link the mol-ecules along [001]. The result is an undulating supra-molecular layer. Layers stack along the b-axis direction with benzo-thia-zole-C-H?O(sulfon-yl) points of contact being evident. The analyses of the calculated Hirshfeld surfaces confirm the relevance of the above inter-molecular inter-actions, but also serve to further differentiate the weaker inter-molecular inter-actions formed by the independent mol-ecules, such as ?-? inter-actions. This is also highlighted in distinctive energy frameworks calculated for the individual mol-ecules.

SUBMITTER: Baddeley TC 

PROVIDER: S-EPMC6509675 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature