title: Crystal structure of 1,3,5-trimethyl-2,4-di-nitro-benzene.
abstract: In the title compound, C9H10N2O4, the planes of the nitro groups subtend dihedral angles of 55.04 (15) and 63.23 (15)° with that of the aromatic ring. These tilts are in opposite senses and the mol-ecule possesses approximate mirror symmetry about a plane normal to the mol-ecule. In the crystal, mol-ecules form stacks in the [100] direction with adjacent mol-ecules related by translation, although the centroid-centroid separation of 4.136 (5) Å is probably too long to regard as a significant aromatic π-π stacking inter-action. An extremely weak C-H⋯O inter-action is also present.
authors.affiliation: Laboratoire de Cristallographie, Département de Physique, Université Mentouri-Constantine, 25000 Constantine, Algeria.
authors.forename: Ouarda
authors.initials: O
authors.lastname: Brihi
authors.affiliation: Laboratoire de Cristallographie, Département de Physique, Université Mentouri-Constantine, 25000 Constantine, Algeria.
authors.forename: Noudjoud
authors.initials: N
authors.lastname: Hamdouni
authors.affiliation: Laboratoire de Cristallographie, Département de Physique, Université Mentouri-Constantine, 25000 Constantine, Algeria.
authors.forename: Ali
authors.initials: A
authors.lastname: Boudjada
authors.affiliation: UMR 6226 CNRS-Université Rennes 1 'Sciences Chimiques de Rennes', Equipe 'Matière Condensée et Systèmes Electroactifs', 263 Avenue du Général Leclerc, F-35042 Rennes, France.
authors.forename: Jean
authors.initials: J
authors.lastname: Meinnel
keywords: crystal structure; di­nitro­benzene; weak C—H⋯O inter­action