1-Nitro-4-(1-propyn-1-yl)benzene

The title compound, C9H7NO2, was prepared by alkynylation of 4-iodo­nitro­benzene with 1,3-dili­thio­propyne in the presence of 1 equivalent of CuI and catalytic amounts of Pd(PPh3)2Cl2. The complete mol­ecule is generated by crystallographic twofold symmetry with the C—N and C—C≡C—C units lying on the rotation axis. No directional inter­actions beyond normal van der Waals contacts could be identified in the packing.