2-Cyano-N,N-dimethyl­acetamide

In the crystal structure of the title compound, C₅H₈N₂O, mol­ecules are linked by weak C—H...O hydrogen bonds, forming a three-dimensional network.

(E)-4-(2-Chloro-1-hy­droxy-2,6,6-tri­methyl­cyclo­hex­yl)but-3-en-2-one

In the title mol­ecule, C₁₃H₂₁ClO₂, there is an intra­molecular C—H...Cl hydrogen bond. The conformation about the C=C bond is E and the six-membered ring has a chair conformation. In the crystal, mol­ecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers, which are consolidated by C—H...O hydrogen bonds. The dimers are linked via C—H.·O hydrogen bonds, forming chains along [100].