August 2012 issue
Cover illustration: The low temperature structure of the heavily chlorinated molecule C20H8Cl12 reveals a triclinic structure with two molecules in the asymmetric unit compared to the monoclinic room-temperature phase with one asymmetric molecule. The propeller-like molecules are chiral and posess quasi-twofold symmetry. See: Jenkins, Fronczek & Watkins [Acta Cryst. (2012). E68, o2538].