title: 4-[4-(4-Nitro-phenyl-diazen-yl)phen-yl]hexa-nenitrile.
abstract: In the mol-ecule of the title compound, C(18)H(18)N(4)O(2), the aromatic rings are oriented at a dihedral angle of 3.72 (3)°. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into centrosymmetric dimers. There are also C-H⋯π inter-actions.
authors.affiliation: College of Science, Nanjing University of Technology, Xinmofan Road No.5 Nanjing, Nanjing 210009, People's Republic of China.
authors.forename: Ran-Zhe
authors.initials: RZ
authors.lastname: Lu
authors.forename: Lu-Na
authors.initials: LN
authors.lastname: Han
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.forename: Bin
authors.initials: B
authors.lastname: Wang
authors.forename: Hai-Bo
authors.initials: HB
authors.lastname: Wang