Powder diffraction study of 1,2:3,4-dibenzanthracene

Abstract

The crystal structure of 1,2:3,4-dibenzanthracene, C22H 14, was solved by simulated annealing from laboratory X-ray powder diffraction data collected at room temperature to 1.8 Å resolution. Subsequent Rietveld refinement yielded an Rwp value of 0.036. The molecules crystallize in space group P21 with two independent molecules in the asymmetric unit which pack in a stacked arrangement along the b axis. © 2005 International Union of Crystallography Printed in Great Britain - all rights reserved.