Conformational studies. Part III. Crystal and molecular structures of N-(2,4-dichlorobenzylidene)aniline

The title compound crystallises in the orthorhombic system P2₁2₁2₁ with cell constants a = 11.202, b = 3.934, c = 26.077 Å, and Z = 4. The crystal and molecular structures were determined by direct methods from 1524 intensities measured on a diffractometer, and refined anisotropically (except hydrogen) to R 0.082. The possible influence of the packing arrangement on the molecular conformation, which differs significantly from that of earlier reported benzylideneanilines, is discussed.