title: Crystal structure ofN,N'-di-benzyl-pyromellitic diimide.
abstract: The title compound, C24H16N2O4[systematic name: 2,6-di-benzyl-pyrrolo-[3,4-f]iso-indole-1,3,5,7(2H,6H)-tetra-one], consists of a central pyromellitic di-imide moiety with terminal benzyl groups at the N-atom positions. The mol-ecule is located about an inversion centre, so the asymmetric unit contains one half-mol-ecule. In the mol-ecule, both terminal phenyl groups, tilted by 72.97 (4)° with respect to the mean plane of the central pyromellitic di-imide moiety (r.m.s. deviation = 0.0145 Å), are oriented away from each other, forming an elongated S-shaped conformation. In the crystal, mol-ecules are connectedviaweak C-H⋯O hydrogen bonds and C-H⋯π inter-actions, resulting in the formation of supra-molecular layers extending parallel to theabplane.
authors.affiliation: Research Institute of Natural Science and Department of Chemistry, Gyeongsang National University, Jinju 52828, Republic of Korea.
authors.forename: Hansu
authors.initials: H
authors.lastname: Im
authors.affiliation: Department of Food and Nutrition, Kyungnam College of Information and Technology, Busan 47011, Republic of Korea.
authors.forename: Suk-Hee
authors.initials: SH
authors.lastname: Moon
authors.affiliation: Research Institute of Natural Science and Department of Chemistry, Gyeongsang National University, Jinju 52828, Republic of Korea.
authors.forename: Tae Ho
authors.initials: TH
authors.lastname: Kim
authors.affiliation: Research Institute of Natural Science and Department of Chemistry, Gyeongsang National University, Jinju 52828, Republic of Korea.
authors.forename: Ki-Min
authors.initials: KM
authors.lastname: Park
keywords: crystal structure; hydrogen bonding; pyromellitic di­imide derivative; two-dimensional network