1-Benzyl-3,5-bis-(4-chloro-benzyl-idene)piperidin-4-one.

The title compound, C(26)H(21)Cl(2)NO, crystallizes with two symmetry-independent mol-ecules (A and B) in the asymmetric unit. In both mol-ecules, the central heterocyclic ring adopts a sofa conformation. The dihedral angles between the planar part of this central heterocyclic ring [maximum deviations of 0.011†(1) and 0.036†(1)†à in mol-ecules A and B, respectively] and the two almost planar [maximum deviations of 0.020†(1) and 0.008†(1)†à in A and 0.007†(1) and 0.011†(1) in B] side-chain fragments that include the aromatic ring and bridging atoms are 20.1†(1) and 31.2†(1)° in mol-ecule A, and 26.4†(1) and 19.6†(1)° in mol-ecule B. The dihedral angles between the planar part of the heterocyclic ring and the benzyl substituent are 79.7†(1) and 53.2†(1)° in mol-ecules A and B, respectively. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link the two independent mol-ecules into dimers.