Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: “Double-Concave” Graphene: Permethoxylated Hexa-peri-hexabenzocoronene and Its Cocrystals with Hexafluorobenzene and Fullerene (Angew. Chem. Int. Ed. 8/2005)
Highly twisted permethoxylated hexa-peri-hexabenzocoronene forms inclusion complexes with hexafluorobenzene and fullerene guest molecules. In addition to the “double-concave” surface which allows its coordination to suitable guest molecules on both sides, the flexible methoxy groups at the periphery of this host molecule adjust their orientation to the size and shape of the guest molecules. Further details are reported in the Communication by K. Müllen et al. on page 1247 ff.
Also of Interest
The DNA sequence contains codes directing interactions and recognition processes on the nanometer scale. B. Samorì and G. Zuccheri demonstrate in their Review on page 1166 ff. how these codes can be identified and exploited.
D. Heller et al. demonstrate in their Communication on page 1184; ff. that it is the “major” substrate complexes, which were characterized by X-ray single-crystal analysis, which lead to the major product in the asymmetric hydrogenation of β-acylaminoacrylates.
The morphology of the skeletal silica network known as the plumber's nightmare is described in the Communication by U. Wiesner et al. on page 1226 ff. The approach is simple and takes place by a block-copolymer-directed sol–gel synthesis.