Crystal structure of chlorfluazuron
نویسندگان
چکیده
The title compound (systematic name: 1-{3,5-di-chloro-4-[3-chloro-5-(tri-fluoro-meth-yl)pyridin-2-yl-oxy]phen-yl}-3-(2,6-difluoro-benzo-yl)urea), C20H9Cl3F5N3O3, is a benzoyl-phenyl-urea insecticide. The dihedral angles between the planes of the central di-chloro-phenyl and the terminal di-fluoro-phenyl and chloro-pyridyl rings are 79.51 (6) and 78.84 6)°, respectively. In the crystal, pairs of N-H⋯O hydrogen bonds link adjacent mol-ecules, forming R 2 (2)(8) inversion dimers. In addition, the dimers are linked by short F⋯Cl [3.1060 (16) Å] and Cl⋯Cl [3.2837 (7) Å] contacts, as well as weak inter-molecular π-π inter-actions [ring centroid separation = 3.6100 (11) and 3.7764 (13) Å], resulting in a two-dimensional architecture parallel to (111).
منابع مشابه
Biochemical and physiological characteristics in chlorfluazuron resistant diamondback moth
Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) showed a high resistance to chlorfluazuron by laboratory selection. However, this resistance was not stable under the laboratory condition without chlorfluazuron selection. When in vivo metabolism of 14C-chlorfluazuron was studied, higher metabolic activities were observed in the chlorfluazuron resistant strain than in the ...
متن کاملDevelopment and Reversion of Chlorfluazuron Resistance in Diamondback Moth
Selection of two strains (TL and BK) of diamondback moth, Plutella xylostella (L.) with chlorfluazuron has produced high levels of resistance in comparatively short time (9 and 10 generations). The resistance ratio values reached 276and 216-fold, for TL and BK strains, respectively. The BK strain developed about 80-fold resistance level after only three selection generations with chlorfluazuron...
متن کاملCombined effect of three insect growth regulators on the digestive enzymatic profiles of Callosobruchus maculatus (Coleoptera: Bruchidae).
Insect growth regulators (IGRs) are insecticides that mimic insect produced hormones by regulatingdevelopmental process. Theyhave little or no mammalian toxicity, and are considered reduced-risk insecticides that are often exempt from tolerance requirements of regulatory agencies. IGRs, especially, chlorfluazuron, hydroprene and hexaflumuron (benzoylphenylurea) are currently studied because of ...
متن کاملX-Ray Crystal Structure of [N, N'-bis(4-Methoxysalicylidene) -2, 3-Dimethylaminopropane] Copper(II) Ethanol Solvate
The crystal structure of the title Schiff base complex is obtained by single-crystal X-ray diffraction data.The solid state structure determination reveals that the coordination geometry around the copper(II) center istetrahedrally distorted square-planar. The crystal packing shows one dimensional infinite chains which arisesfrom the intermolecular interaction and stabilize the crystal packing.
متن کاملRedetermination of Crystal Structure of N,N'-bis (2-Hydroxybenzylidene)-2,2-Dimethyl-1,3-Propanediamine
The structure of N,N'-bis(2-hydroxybenzylidene)-2,2-dimethyl-1,3-propanediamine, C19H22N2O2, has been studied at low temperature (120K) by means of single-crystal X-ray diffraction. Solving the structure shows an orthorhombic unit cell, with P212121 space group, Z = 4, a = 6.1046 (4) Å, b = 15.8349 (11)</e...
متن کامل