r-2,c-6-Bis­(2-chloro­phen­yl)-t-3,t-5-dimethyl-1-nitrosopiperidin-4-one oxime

In the title compound, C₁₉H₁₉Cl₂N₃O₂, the piperidine ring adopts a distorted boat conformation. In the solid state, the mol­ecules exist as O—H...N-hydrogen-bonded centrosymmetric dimers.

r-2,c-6-Bis(4-chloro­phen­yl)-t-3,t-5-dimethyl-1-nitrosopiperidin-4-one oxime

In the title compound, C₁₉H₁₉Cl₂N₃O₂, the piperidine ring adopts a distorted boat conformation. In the solid state, the mol­ecules exist as O—H...N hydrogen-bonded centrosymmetric dimers.

t-3-Methyl-1-nitroso-r-2,c-6-diphenyl­piperidin-4-one oxime monohydrate

In the title compound, C₁₈H₁₉N₃O₂·H₂O, the piperidine ring adopts a distorted boat conformation. In the solid state, the mol­ecules are linked by inter­molecular O—H...O and O—H...N hydrogen bonds involving water mol­ecules.