September 2014 issue
Cover illustration: The molecular structure of 2,7-diethoxy-1,8-bis(4-nitrobenzoyl)naphthalene possesses crystallographically imposed twofold symmetry with two C atoms lying on the rotation axis. The crystal packing is characterized by C-HO=C hydrogen bonds between the benzene rings and the carbonyl groups and C-HO=N hydrogen bonds between the benzene rings and the nitro groups. See: Mohri, Ohisa, Noguchi, Yonezawa & Okamoto [Acta Cryst. (2014). E70, 138-141].