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In the title compound, C26H34F2N6S, the triazole ring is linked to a benzene ring via an imine bond [N=C = 1.255 (2) Å; conformation: E], with a dihedral angle of 25.21 (11)° between the rings. The 4-ethyl­piperazinyl residue is folded away from the thione-S atom. In the crystal, helical supra­molecular chains propagating along [010] and sustained by weak C—S...π(triazole) inter­actions occur [S...centroid distance = 3.2872 (10) Å]. Links between these chains are of the type benzene-C—H...N(imine) and π–π [between centrosymmetrically related benzene rings with an inter-centroid distance of 3.9241 (15) Å] and result in a three-dimensional architecture.

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In the title compound, C26H37N5S, the piperazine ring adopts a chair conformation with the exocyclic N-C bonds in pseudo-equatorial orientations. The piperazine ring (all atoms) subtends dihedral angles of 79.47 (9) and 73.07 (9)° with the triazole and benzene rings, respectively, resulting in an approximate U-shape for the mol­ecule. No significant inter­molecular inter­actions are observed in the crystal.

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In the title compound, C20H26N2S, the N-containing six-membered ring adopts a boat conformation and the dihedral angle between the thio­carbamide group and the benzene ring is 49.67 (9)°. An intra­molecular C—H...S hydrogen bond generates an S(6) ring motif. The N—H group is sterically hindered and there are no significant inter­molecular inter­actions beyond van der Waals contacts.
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