4-[(4-Fluoro-benzyl-idene)amino]-3-[1-(4-isobutyl-phen-yl)eth-yl]-1H-1,2,4-triazole-5(4H)-thione

In the title compound, C(21)H(23)FN(4)S, the benzene rings of the isobutyl-phenyl and fluoro-benzene units form dihedral angles of 75.89 (7) and 13.26 (7)°, respectively, with the triazole ring. An intra-molecular C-H⋯S hydrogen-bonding contact generates an S(6) ring motif. In the crystal packing, pairs of N-H⋯S hydrogen bonds link neighbouring mol-ecules into inversion dimers, forming R(2) (2)(8) ring motifs. The crystal structure is further stabilized by C-H⋯π inter-actions.