3-Methyl-4-{(E)-[4-(methyl­sulfan­yl)benzyl­idene]amino}-1H-1,2,4-triazole-5(4H)-thione

In the title mol­ecule, C₁₁H₁₂N₄S₂, the dihedral angle between the triazole and benzene rings is 21.31 (5)°. A weak intra­molecular C—H...S hydrogen bond generates an S(6) ring motif. In the crystal, pairs of N—H...S hydrogen bonds form inversion dimers. In addition, π–π inter­actions are observed between the benzene rings, with a centroid–centroid separation of 3.7599 (11) Å.

4-Amino-3-(3-meth­oxy­benz­yl)-1H-1,2,4-triazole-5(4H)-thione

In the title mol­ecule, C₁₀H₁₂N₄SO, the triazole ring forms a dihedral angle of 73.0 (5)° with the benzene ring. The meth­oxy group is approximtely coplanar with the benzene ring with a C[pdbond]C—O—C_meth­yl torsion angle of 4.7 (3)°. In the crystal, N—H...S hydrogen bonds connect pairs of inversion-related mol­ecules, which are in turn connected by N—H...N hydrogen bonds into chains of rings along [010]. Weak C—H...O hydrogen bonds connect these chains into a two-dimensional network parallel to (-102).

4-Hy­droxy-N-methyl­benzamide

Three independent mol­ecules comprise the asymmetric unit of the title compound, C₈H₉NO₂, in which the dihedral angles between the amide group and the benzene ring are 3.0 (2), 4.0 (3) and 3.3 (9)°. In the crystal, O—H...O hydrogen bonds and weak C—H...N inter­actions are observed, forming infinite chains along [101].

(2E)-1-(4-Chloro­phen­yl)-3-(4-nitro­phen­yl)prop-2-en-1-one

In the title compound, C₁₅H₁₀ClNO₃, a substituted chalcone, the dihedral angle between the benzene rings is 5.1 (7)°. The nitro group makes a dihedral angle of 12.5 (3)° with the benzene ring to which it is attached. In the crystal, weak C—H...O inter­actions link the mol­ecules into a one-dimensional array along [010]. The crystal studied was an inversion twin, with a refined ratio for the twin components of 0.6060 (9):0.3939 (1).