Acta Cryst. (2013). E69, o682 [ doi:10.1107/S1600536813008660 ]
Abstract: In the title compound, C22H16N2O6, the naphthalene ring systems form a dihedral angle of 65.2 (1)°. Two O atoms of one of the nitro groups are disordered over two sets of sites with occupancy factors of 0.586 (15) and 0.414 (15). Weak C-HO intermolecular interactions are present, forming a ladder like structure along the a axis.
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