p-Nitrophenyl isocyanide.

Achiral p-nitrophenyl isocyanide, C(7)H(4)N(2)O(2), crystallizes in the orthorhombic chiral space group P2(1)2(1)2(1). Attractive intermolecular interactions between the nitro O atoms and both aromatic H and nitro N atoms of neighbouring molecules are observed. The O.N interaction is surprisingly strong [N.O = 2.869 (2) A] compared with other aromatic nitro compounds.