Crystal structure of 2,6-dichloro-4-nitropyridine N-oxide

In the title compound, C₅H₂Cl₂N₂O₃, the nitro group is essentially coplanar with the aromatic ring, with a twist angle of 4.00(6)° and a fold angle of 2.28(17)°. The crystal structure exhibits a herringbone pattern with the zigzag running along the b axis. The herringbone layer-to-layer distance is 3.0075(15)Å, with a shift of 5.150(4)Å. Neighboring molecules are tilted at a 57.83(4)° (ring-to-ring) angle with each other. The nitro group on one molecule points to the N-oxide group on the neighboring one, with an intermolecular O⋯N(nitro) distance of 3.1725(13)Å.