Bisophenol Flukicides. II. The Crystal Structure of 2,2'-(2,2,2-Trichloroethylidene)bis(4-chloro-6-nitrophenol)

Abstract

Crystals of the title compound, C₁₄H₇Cl₅N₂O₆, belong to the monoclinic space group P2₁/c with cell dimensions a 13.021(2), b 10.508(2), c 13.360(2)Ǻ, β 106.00(1)° and Z 4. The structure was solved by direct methods from diffractometer data measured with Cu Kα radiation, and refined to a conventional R index of 0.046 for 2465 non-equivalent terms. The phenyl rings are mutually inclined at 73.9ˌ, and the equivalent substituents of each ring lie on the same side of the plane formed by the bridging carbon atom and its two bonded aromatic carbon atoms.