Crystal structure of 2,3,5,6-tetra­bromo­tereph­thalo­­nitrile

The title crystal (systematic name: 2,3,5,6-tetra­bromo­benzene-1,4-dicarbonitrile), C(8)Br(4)N(2), is the first bromo analog in a study of cyano-halo (C≡N⋯X) non-bonded contacts in crystals of halogenated di­cyano­benzenes. The complete mol­ecule is generated by a crystallographic center of symmetry. In the extended structure, each Br atom accepts one C≡N⋯Br inter­action, and each N atom is bis­ected by two. This contact network forms a nearly planar sheet structure propagating in the ([Image: see text]01) plane, similar to that reported in hexa­methyl­benzene co-crystals of the tetra­chloro analog.