Acta Cryst. (2008). E64, o2258 [ doi:10.1107/S1600536808034958 ]
Abstract: In the title compound, C27H17N3O4, the azo group displays a trans conformation and the dihedral angles between the central benzene ring and the pendant anthracene and nitrobenzene rings are 82.94 (7) and 7.30 (9)°, respectively. In the crystal structure, weak C-HO hydrogen bonds, likely associated with a dipole moment present on the molecule, help to consolidate the packing.
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