Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture (Angew. Chem. Int. Ed. Engl. 10/1996)
The cover picture shows the ball-and-stick model viewed down the crystallographic S4 axis of a tetrahedral cluster formed by the self-assembly of four gallium(III) ions (green) and six ligands (gold). The cavity of the supramolecular assembly is penetrated by four dimethylformamide molecules (red; space-filling representation). The cluster formation is driven by symmetry number incommensurate lock-and-key interactions. More about this concept and its application is reported by Raymond et al. on pages 1084ff. The picture was generated from crystal coordinates with CAChe software.