December 2011 issue
Cover illustration: Crystal structures are uniquely powerful in probing the detailed structures of molecular catalysts. In the non-C2-symmetric chiral compound [Fe2(C5H5)2(C14H19BBrN)], the ferrocene units both adopt essentially staggered arrangements of their five-membered rings and the conformation is stabilized by an intramolecular C-HBr link. See Wang, Zirakzadeh, Weissensteiner & Mereiter [Acta Cryst. (2011). E67, m1806-m1807].