Crystal structure of N , N '-bis-(2,4-di-fluoro-benzo-yloxy)benzene-1,2:4,5-tetra-carboximide.

Mol-ecules of the title compound, C24 H8 F4 N2 O8 , have C i point-group symmetry in the crystal, as they lie on crystallographic inversion centres ( Z ' = 1/2). The di-fluoro-phenyl ring is disordered over two orientations; the final refined occupancy factors of the two components of disorder are 0.947 (4) and 0.053 (4). In the crystal, some Car -H⋯F inter-actions are present, which involve the most acidic H atom of the mol-ecule.