title: (1E,4E)-1,5-Bis(4-methyl-phen-yl)penta-1,4-dien-3-one.
abstract: The title compound, C(19)H(18)O, crystallizes in a non-centrosymmetric space group although the mol-ecule has no chiral centre. The dihedral angle between the aromatic rings is 20.43 (13)°. The structure is stabilized by two intra-molecular hydrogen bonds, and by four π-π and three C-H⋯π inter-actions between the aromatic rings. The perpendicular distances between the centroids of the rings involved in the π-π inter-actions have values of 1.996, 2.061, 2.181 and 2.189 Å.
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Arshad
authors.forename: Muhammad Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Muhammad Nadeem
authors.initials: MN
authors.lastname: Asghar
authors.forename: Islam Ullah
authors.initials: IU
authors.lastname: Khan
authors.forename: Muhammad
authors.initials: M
authors.lastname: Ashfaq