2,6-Bis(2-methyl­phen­yl)-1-nitroso-3,5-diphenyl­piperidin-4-one

In the title compound, C₃₁H₂₈N₂O₂ the piperidinone ring adopts a twist-boat conformation. A C—H...O hydrogen bond between mol­ecules related through a centre of inversion leads to the formation of dimers. These centrosymmetric dimers have no hydrogen-bond inter­actions between them and form columns running along the b axis through van der Waals inter­actions. In addition, a weak C—H...π inter­action involving the 2-methyl­phen­yl ring, with H...π = 2.64 Å and an angle of 170°, is observed.