Structural study of 2,4-dichlorobenzanilide - An aromatic substituted amide

The crystal structure of the title compound (C13H9NOCl2) has been determine d by X-ray crystallographic techniques. The compound crystallizes in the tr iclinic space group P1 with unit cell parameters: a = 9.717(3), b = 10.104( 3), ( = 13.636(3) Angstrom, alpha = 80.36(2), beta = 78.20(2). gamma = 70.0 7(2)degrees, Z = 4. The structure has been solved by direct methods and ref ined to R = 0.051 for 3310 observed reflections and omegaR(F-2) = 0.149. Th ere are two crystallographically independent molecules in the asymmetric un it. In both the molecules, the phenyl rings are planar. The crystal structu re is stabilized by van der Waals forces.