title: Crystal structure of (Z)-2-[(E)-2-benzyl-idene-hydrazin-1-yl-idene]-1,2-di-phenyl-ethanone.
abstract: The title compound, C21H16N2O, has an almost planar (r.m.s. deviation = 0.0074 Å) 1,2-di-benzyl-idenehydrazine backbone with an approximately orthogonal almost planar (r.m.s. deviation = 0.0368 Å) phenyl-ethanone substituent on one of the imine C atoms. The dihedral angle between the two mean planes is 76.99 (4)°. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds and C-H⋯π contacts, forming a three-dimensional structure with mol-ecules stacked along the a-axis direction.
authors.affiliation: Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures (LCIMN), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria.
authors.forename: Abdelaziz
authors.initials: A
authors.lastname: Bouchama
authors.affiliation: Laboratoire d'Electrochimie des Matériaux Moléculaires et Complexes (L.E.M.M.C.), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria.
authors.forename: Messaoud
authors.initials: M
authors.lastname: Yahiaoui
authors.affiliation: Laboratoire d'Electrochimie des Matériaux Moléculaires et Complexes (L.E.M.M.C.), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria.
authors.forename: Chaabane
authors.initials: C
authors.lastname: Chiter
authors.affiliation: Département de Technologie, Faculté de Technologie, Université 20 Août 1955-Skikda, BP 26, Route d'El-Hadaiek, Skikda 21000, Algeria ; Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures (LCIMN), Université Ferhat Abbas Sétif 1, Sétif 19000, Algeria.
authors.forename: Zouaoui
authors.initials: Z
authors.lastname: Setifi
authors.affiliation: Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand.
authors.forename: Jim
authors.initials: J
authors.lastname: Simpson
keywords: C—H⋯π contacts; Schiff base; azines; crystal structure; dimers