Structure Reports Online

Volume 66, Part 2 (February 2010)

organic compounds

Acta Cryst. (2010). E66, o499 [ doi:10.1107/S1600536810003375 ]

2-Chloro-N-[4-chloro-2-(2-chlorobenzoyl)phenyl]acetamide

G. Dutkiewicz, B. P. Siddaraju, H. S. Yathirajan, B. Narayana and M. Kubicki

Abstract: In the title compound, C₁₅H₁₀Cl₃NO₂, an intramolecular N-HO hydrogen bond forms a six-membered ring and enforces an almost coplanar conformation for the acetamido group, the central benzene ring and the bridging carbonyl C-C(=O)-C group: the dihedral angles between the benzene ring and the acetamide and carbonyl C-C(=O)-C planes are 7.06 (11) and 7.17 (12)°, respectively. The dihedral angle between the two benzene rings is 67.43 (9)°. Because a strong hydrogen-bond donor is involved in the intramolecular interaction, the crystal packing is determined by weak C-HO and C-HCl interactions.