
%0 Journal Article
%A Kennard, CHL 
%A Smith, G 
%A Katekar, GF 
%T Crystal structure of 2-(2,6-Dichlorophenylcarbamoyl)benzoic acid
%J Australian Journal of Chemistry
%D 1982/09/01
%V 35
%N 9
%P 1933-1937
%K 
%R https://doi.org/10.1071/CH9821933
%U https://www.publish.csiro.au/paper/CH9821933 
%X The crystal structure of 2-(2,6-dichlorophenylcarbamoyl)benzoic acid has been determined by direct methods from three-dimensional X-ray diffraction data and refined to R 0.076 for 971 'observed' reflections. Crystals are monoclinic, space group P21/c with Z4 in a cell of dimensions a 12.150(6), b l3.629(6), c 8.368(4) Å, &#946; lO3.75(4)º. The molecules form centrosymmetric hydrogen-bonded cyclic dimers [O. . .O, 2.64(1) Å] with the carboxylic acid group lying in the approximate plane of the attached benzene ring (dihedral angle 7.63º). This is in turn almost parallel to the 2,6-dichlorophenyl substituent group on the acid amide (dihedral angle 4.14º). The amide group is synclinally related to the ring systems in a similar way to that found in other phthalamic acids. 
