Crystal and molecular structure of 6,12-dimethyldibenzo[def,mno]-chrysene (6,12-dimethylanthanthrene)

Abstract

The crystal structure of the title compound (I) has been determined from diffractometer data by the weighted reciprocal lattice technique and refined to R 8·7%(for 1725 observed reflections). Crystals are monoclinic, space group P2₁/c, with a= 22·17(2), b= 5·229(3), c= 13·458(7)Å, β= 105·21°(10), Z= 4. The two independent centrosymmetrical molecules in the unit cell are planar and do not differ significantly.