2-[(2-Hy­droxy­naphthalen-1-yl)methyl­idene­amino]-5,6,7,8-tetra­hydro-4H-cyclo­hepta­[b]thio­phene-3-carbonitrile

Two independent mol­ecules, A and B, comprise the asymmetric unit of the title compound, C₂₁H₁₈N₂OS, with the difference in the angle of orientation between the naphthalene ring system and the mean plane of the cyclo­heptyl ring [16.13 (1) in A and 11.48 (5)° in B], being evident. The cyclo­heptyl ring adopts a distorted chair conformation in each mol­ecule with r.m.s. deviations of 0.2345 (4) (A) and 0.2302 (4) Å (B). Intra­molecular O—H...N hydrogen bonding generates planar six-membered S(6) loops with r.m.s. deviations of 0.0099 (1) (A) and 0.0286 (1) Å (B).

5-Acetyl-3-(5-phenyl-1H-pyrazol-3-yl)-1,3,4-thia­diazol-2(3H)-one monohydrate

In the title hydrate, C₁₃H₁₀N₄O₂S·H₂O, the dihedral angles between the central pyrazole ring and its pendant phenyl and thia­diazole rings are 9.93 (8) and 4.56 (7)°, respectively. In the crystal, the components are linked by N—H...O, O—H...N and O—H...O hydrogen bonds, generating [100] chains incorporating R₄⁴(10) loops. A weak C—H...O inter­action helps to consolidate the packing.