Laboratoire de Cristallographie, Département de Physique, Université Mentouri-Constantine, 25000 Constantine, Algeria
Ali Boudjada
Laboratoire de Cristallographie, Département de Physique, Université Mentouri-Constantine, 25000 Constantine, Algeria
Noudjoud Hamdouni
Laboratoire de Cristallographie, Département de Physique, Université Mentouri-Constantine, 25000 Constantine, Algeria
Olivier Jeannin
UMR 6226 CNRS–Université Rennes 1 `Sciences Chimiques de Rennes', Equipe `Matière Condensée et Systèmes Electroactifs', Bâtiment 10C, Campus de Beaulieu, 263 Avenue du Général Leclerc, F-35042 Rennes, France
Jean Meinnel
UMR 6226 CNRS–Université Rennes 1 `Sciences Chimiques de Rennes', Equipe `Matière Condensée et Systèmes Electroactifs', Bâtiment 10C, Campus de Beaulieu, 263 Avenue du Général Leclerc, F-35042 Rennes, France
The title compound, C7H5Cl2NO2 [systematic name: 1,3-dichloro-2-methyl-5-nitrobenzene], crystallizes in the chiral space group P212121 with a Flack parameter of −0.03 (5). The methyl C atom, the Cl atoms and the N atom of the nitro substituent all lie extremely close to the plane of the benzene ring; the deviations are 0.028 (3) Å for the methyl C atom, −0.016 (1) and 0.007 (1) Å for the two Cl atoms, and −0.017 (3) Å for the nitro N atom. Hence, no significant steric hindrance of the methyl group by the ortho halogen atoms is observed. The nitro group is inclined to the benzene ring by 9.8 (3)°. In the crystal, molecules are linked by weak C—H...O and C—H...Cl hydrogen bonds, forming layers parallel to the ab plane.
