Experimental Crystal data

0.037; wR factor = 0.098; data-to-parameter ratio = 12.1. In the crystal structure of the title compound, C6H2Cl2INO2, there are weak C—H Cl interactions and I O [3.387 (4) Å] close contacts. These interactions form sheets in the ac plane, with the closest contact between adjacent planes occurring between inversion-related nitro O atoms [3.025 (8) Å]. The molecule possesses mirror symmetry, with the halogen, N and C atoms all lying in the mirror plane. Hence, the dihedral angle between the benzene ring and the nitro group is 90. Related literature For crystal structures of similar substituted nitrobenzenes, see: Li et al. (2012); Tahir et al. (2009). For information about polychlorinated biphenyls (PCBs) and their synthesis, see: Joshi et al. (2011); Lehmler et al. (2010); Lehmler & Robertson (2001). For the synthesis of the title compound, see: Sohn et al