Abstract: The structure of perchlorotriphenylamine has been determined by X-ray analysis. Because this molecular propeller occupies a crystallographic site of C2 symmetry, the nitrogen atom is located in the plane of the neighboring carbon atoms. Partial resolution was achieved by chromatography on microcrystalline cellulose triacetate. Perchlorotriphenylamine thus becomes the first example of an optically active compound ...
