title: 1-(2-Chloro-benzo-yl)-3-[4-(trifluoro-meth-oxy)phen-yl]urea.
abstract: The title compound, C(15)H(10)ClF(3)N(2)O(3), is considered to belong to a fourth generation of insecticides with properties such as high selectivity, low acute toxicity for mammals and high biological activity. The dihedral angle between the two benzene rings is 59.3 (2)°. Intra-molecular C-H⋯O and N-H⋯O hydrogen bonds are observed. Inter-molecular N-H⋯O hydrogen bonding generates a centrosymmetric dimer. The F atoms are disordered over two positions; the site occupancy factors are 0.52 and 0.48.
authors.affiliation: Department of Applied Chemistry, College of Science, Nanjing University of Technology, Xinmofan Road No. 5, Nanjing 210009, People's Republic of China.
authors.forename: Yin-Hong
authors.initials: YH
authors.lastname: Liu
authors.forename: Fang-Shi
authors.initials: FS
authors.lastname: Li
authors.forename: Li-He
authors.initials: LH
authors.lastname: Yin
authors.forename: Da-Sheng
authors.initials: DS
authors.lastname: Yu