2,6-Di­bromo-4-chloro­phenyl isocyanide

Noland WE and Tritch KJ

Mol­ecules of the title compound, C7H2Br2ClN (RNC), are bis­ected by a mirror plane that passes through the chloro and iso­cyano groups. The iso­cyano C atom is bis­ected by two NC⋯Br contacts, one per Br atom. The resulting centric R22(10) rings form ribbons along [010], which align to form a nearly planar sheet structure that is very similar to the sheets observed in several related 2,6-di­bromo­phenyl cyanides and isocyanides. The crystal of RNC is isomorphous with the corresponding cyanide, with solely translational stacking between sheets. This is in contrast to the 2,4,6-tri­bromo­phenyl cyanide and isocyanide, which occur as different polytypes.