title: (3E,5E)-3,5-Bis(naphthalen-1-yl-methyl-idene)piperidin-4-one.
abstract: In the title compound, C(27)H(21)NO, the piperidine ring adopts a chair conformation. The mean plane through the piperidine ring makes dihedral angles of 49.27 (5) and 63.07 (5)° with the naphthalene ring systems. In the crystal, mol-ecules are linked into dimers via pairs of inter-molecular C-H⋯O inter-actions, generating ten-membered R(2) (2)(10) ring motifs. C-H⋯π inter-actions further stabilize the crystal structure.
authors.forename: Yalda
authors.initials: Y
authors.lastname: Kia
authors.forename: Hasnah
authors.initials: H
authors.lastname: Osman
authors.forename: Vikneswaran
authors.initials: V
authors.lastname: Murugaiyah
authors.forename: Suhana
authors.initials: S
authors.lastname: Arshad
authors.forename: Ibrahim Abdul
authors.initials: IA
authors.lastname: Razak