Crystal structure of N-ethyl-2-(1,2,3,4-tetra­hydro­naphthalen-1-yl­idene)hydrazinecarbo­thio­amide

There are two crystallographically independent mol­ecules in the asymmetric unit of the title compound, C(13)H(17)N(3)S, one of them being disordered over the methyl group [site-occupancy ratio = 0.705 (5):0.295 (5)]. The maximum r.m.s. deviations from the mean plane of the non-H atoms for the tetra­lone fragments amount to 0.4572 (17) and 0.4558 (15) Å. The N—N—C—N fragments are not planar and torsion angles are −9.4 (2) and 8.3 (2)°. In the crystal, the mol­ecules are linked by weak N—H⋯S inter­actions into chains along [100] with graph-set motif C(4) and connected by weak N—H⋯S and C—H⋯S inter­actions, forming R (2) (1)(10) rings. The Hirshfeld surface analysis indicates that the most important contributions for the crystal packing are the H⋯H (64.20%), H⋯S (12.60%) and H⋯C (12.00%) inter­actions. The crystal packing resembles a herringbone arrangement when viewed along [001].