title: 2-{[(Dimethyl-amino)-methyl-idene]amino}-5-nitro-benzonitrile.
abstract: The title mol-ecule, C10H10N4O2, is almost planar and adopts an E configuration of the azomethine [C=N = 1.298 (2) Å] double bond. The benzene ring is attached to an essentially planar (r.m.s. deviation = 0.0226 Å) amidine moiety (N=CN/Me2), the dihedral angle between the two mean planes being 18.42 (11)°. The cyano group lies in the plane of the benzene ring [the C and N atoms deviating by 0.030 (3) and 0.040 (3) Å, respectively], while the nitro group makes a dihedral angle 5.8 (3)° with the benzene ring. There are two distinct inter-molecular hydrogen bonds, C-H⋯O and C-H⋯N, that stabilize the crystal structure; the former inter-actions result in centrosymmetric dimers about inversion centers resulting in ten-membered rings, while the later give rise to chains of mol-ecules running parallel to the b axis.
authors.affiliation: H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
authors.forename: Syed Muhammad
authors.initials: SM
authors.lastname: Saad
authors.forename: Syed Moazzam
authors.initials: SM
authors.lastname: Haider
authors.forename: Shahnaz
authors.initials: S
authors.lastname: Perveen
authors.forename: Khalid M
authors.initials: KM
authors.lastname: Khan
authors.forename: Sammer
authors.initials: S
authors.lastname: Yousuf