title: (E)-2-{Eth-yl[4-(4-nitro-phenyl-diazen-yl)phen-yl]amino}ethyl anthracene-9-carboxyl-ate.
abstract: The crystal structure of the title compound, C(31)H(26)N(4)O(4), displays a trans conformation for the nitro-phenyl-diazenyl portion of the mol-ecule. Packing diagrams indicate that weak C-H⋯O hydrogen bonds, likely associated with a strong dipole moment present in the mol-ecule, dictate the arrangement of mol-ecules in the crystal structure.
authors.forename: Mark A
authors.initials: MA
authors.lastname: Rodriguez
authors.forename: Thomas
authors.initials: T
authors.lastname: Zifer
authors.forename: Andrew L
authors.initials: AL
authors.lastname: Vance
authors.forename: Bryan M
authors.initials: BM
authors.lastname: Wong
authors.forename: Francois
authors.initials: F
authors.lastname: Leonard