Crystal structure of 4-({(1E,2E)-3-[3-(4-fluoro­phen­yl)-1-isopropyl-1H-indol-2-yl]allyl­idene}amino)-5-methyl-1H-1,2,4-triazole-5(4H)-thione

The title compound, C(23)H(22)FN(5)S, exists in a trans conformation with respect to the methene C=C and the acyclic N=C bonds. The 1,2,4-triazole-5(4H)-thione ring makes dihedral angles of 88.66 (9) and 84.51 (10)°, respectively, with the indole and benzene rings. In the crystal, mol­ecules are linked by pairs of N—H⋯S hydrogen bonds, forming inversion dimers with an R (2) (2)(8) ring motif. The dimers are linked via C—H⋯π inter­actions, forming chains along [1-10]. The chains are linked via π—π inter­actions involving inversion-related triazole rings [centroid–centroid distance = 3.4340 (13) Å], forming layers parallel to the ab plane.