title: 1-(4-Nitro-benzo-yl)-3-(4-nitro-phen-yl)-thio-urea acetone hemisolvate.
abstract: In the title compound, C(14)H(10)N(4)O(5)S·0.5C(3)H(6)O, the nitro-benzoyl and nitro-phenyl groups have trans and cis configurations, respectively, with respect to the thio-urea S atom. The mol-ecular conformation is stabilized by intra-molecular N-H⋯O and C-H⋯S hydrogen bonds. The acetone solvent mol-ecule possesses a crystallographically imposed twofold axis. In the crystal packing, thio-urea mol-ecules are linked by inter-molecular C-H⋯O hydrogen-bond inter-actions to form chains running parallel to the c axis. The chains are further bridged via N-H⋯O and C-H⋯O hydrogen bonds involving the acetone mol-ecules.
authors.affiliation: Chemical Engineering Institute, Northwest University for Nationalities, Lanzhou 730124, People's Republic of China.
authors.forename: Liang
authors.initials: L
authors.lastname: Xian
authors.forename: Lujuan
authors.initials: L
authors.lastname: Cui
authors.forename: Ming
authors.initials: M
authors.lastname: Cheng