Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: A T-Shaped Platinum(ii) Boryl Complex as the Precursor to a Platinum Compound with a Base-Stabilized Borylene Ligand (Angew. Chem. Int. Ed. 35/2005)
Cationic T-shaped platinum complexes are obtained because of the high trans influence of the ferrocenyl(bromo)boryl ligand. Addition of 4-methylpyridine to the platinum(ii) boryl complex (as shown in the cover picture) causes displacement of the bromide ion at boron, leading to a cationic platinum complex with a 4-methylpyridine-stabilized borylene ligand (bottom right). For more information on this approach, see the Communication by H. Braunschweig et al. on page 5651 ff.
Also of Interest
The formation and morphogenesis of mesocrystals apparently contradict the classical textbook knowledge on crystallization. This new type of colloidal crystals is discussed by H. Cölfen and M. Antonietti in their Review on page 5576 ff.
One of the central roles of current materials research is a technology based on functional single molecules or small ensembles of molecules. The latest research is described by K. Müllen and A. C. Grimsdale in their Review on page 5592 ff.
U. Meierhenrich, L. Nahon et al. show in their Communication on page 5630 ff. that irradiation of solid d,l-leucine probes with right circularly polarized synchrotron radiation results in an enantiomeric excess of d-leucine.