N′-[(2Z)-3-Allyl-4-oxo-1,3-thia­zolidin-2-yl­idene]-5-fluoro-3-phenyl-1H-indole-2-carbohydrazide

In the title compound, C21H17FN4O2S, the planar indole fused-ring [maximum deviation 0.009 (1) Å] makes dihedral angles of 54.75 (9) and 14.90 (9)°, respectively, with the phenyl ring and the dihydro­thia­zolyl ring. The –CH2CH=CH2 substituent is disordered over two positions in a 0.51 (1):0.49 (1) ratio. An intra­molecular N—H⋯S hydrogen bond generates an S(5) ring motif. The two independent mol­ecules are linked into a dimer by two N—H⋯O hydrogen bonds, forming an R 2 2(10) ring motif. The crystal structure features inter­molecular C—H⋯π and π–π stacking [centroid–centroid distance = 3.679 (1) Å] inter­actions. C—H⋯O and C—H⋯F inter­actions are also present

5-Fluoro-N′-[(E)-4-methoxy­benzyl­idene]-3-phenyl-1H-indole-2-carbohydrazide

In the title mol­ecule, C23H18FN3O2, the mean plane of the indole system forms dihedral angles of 44.23 (8) and 14.54 (7)°, respectively, with the phenyl and benzene rings. In the crystal, inter­molecular N—H⋯O hydrogen bonds link mol­ecules into two-layer ribbons extended along the b axis. The crystal packing also exhibits weak inter­molecular C—H⋯O, C—H⋯F and C—H⋯π inter­actions

4-{3-[Hydr­oxy(phen­yl)meth­yl]-5-thioxo-4,5-dihydro-1H-1,2,4-triazol-4-yl}benzene­sulfonamide

In the title compound, C15H14N4O3S2, the hydr­oxy group is disordered over two positions with occupancies of 0.619 (5) and 0.381 (5). The benzene ring attached to the heterocycle makes a dihedral angle of 86.92 (9)° with respect to the best plane through the five-membered ring. The crystal packing is stabilized by inter­molecular O—H⋯O, N—H⋯S, N—H⋯N, C—H⋯O and C—H⋯N hydrogen bonds, and N—H⋯π and C—H⋯π inter­actions

5-Chloro-4′-ethyl-3H-spiro­[1,3-benzo­thia­zole-2,1′-cyclo­hexa­ne]

In the title compound, C14H18ClNS, the 2,3-dihydro-1,3-thia­zole ring adopts an envelope with the S,N-bound C atom at the flap and the cyclo­hexane ring adopts a chair conformation. In the crystal, N—H⋯S hydrogen bonds with C(5) motifs connect the mol­ecules into chains parallel to the c axis