4,4'-AZOXYDIANISOLE AT 203 K

The crystal structure determination of the title compound, C14H14N2O3, reinvestigated using low-temperature X-ray diffraction data, confirms the earlier report. However, the almost planar molecule is observed i n a disordered state. Two partial molecules exist in unequal proportio ns (75:25). They are related to one another through a pseudo-twofold a xis of rotation contained in the molecular plane and normal to the mol ecular axis. The dihedral angle between the two aromatic systems is 22 .1 (9)degrees.