3,4,6-Trichloro-5-cyano-2-hydroxybenzamide.
The title compound, C(8)H(3)Cl(3)N(2)O(2), forms crystals in which hydrogen-bonding and Cl...N interactions appear to be equally important to the structure. The molecules form ribbons held together alternately by cyclic (CONH)(2) and cyclic (ClCCC[triple-bond]N)(2) interactions. The ribbons assemble into layers through Cl...Cl interactions. The layers are held together by NH...N[triple-bond]C hydrogen bonds, as well as by pi-pi interactions.
Britton
Doyle
D
Department of Chemistry, University of Minnesota, Minneapolis, MN 55455-0431, USA. britton@chem.umn.edu