MetadataShow full item record
The title compound, C(15)H(14)N(2)O(4), has two crystallographically independent molecules in the asymmetric unit. In both molecules, the nitro and the two methoxy substituents are coplanar with the benzene rings to which they are attached. The benzene rings are nearly coplanar, with dihedral angles between the two benzene rings of 10.39 (8) and 5.95 (8)degrees in the two molecules. The two independent molecules in the asymmetric unit are rotated with respect to each other such that the dihedral angles between equivalent benzene rings are 49.11 (8) and 63.93 (8)degrees. In the crystal structure, intermolecular C-H center dot center dot center dot O hydrogen-bond contacts and a weak C-H center dot center dot center dot pi interaction are observed.