Sulphone structures. Part III. Crystal and molecular structure of 5,5′-dichloro-2-hydroxy-2′-(phenylsulphonyl)azoxybenzene

Abstract

The crystal structure of the title compound (4) has been determined by a direct method. Crystals are monoclinic, a= 14.68 ± 0.01, b= 12.07 ± 0.01, c= 21.27 ± 0.02 Å, β= 91.5°±0.1°, space group A2/a, Z= 8; visual data, R 0.11 for 2 079 independent reflections. The molecule contains a bifurcated hydrogen bond, and the orientation of the substituent to the phenylsulphonyl group is as expected.