Angewandte Chemie International Edition

Cover image for Vol. 55 Issue 32

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPlusChem, Zeitschrift für Chemie

49_10/2010Cover Picture: A Recyclable Nanoparticle-Supported Palladium Catalyst for the Hydroxycarbonylation of Aryl Halides in Water (Angew. Chem. Int. Ed. 10/2010)

Temperature-dependent reversible immobilization of Pd catalysts on carbon-coated, magnetic Co nanoparticles is facilitated by pyrene-modified N-heterocyclic carbene ligands. O. Reiser et al. show in their Communication on page 1867 ff. how this approach allows the efficient palladium-catalyzed carboxlyation of aryl halides in water at 100 °C: In each of 16 cycles the catalyst is recovered onto the nanoparticles by cooling to room temperature. The nanoparticles are then separated from the mixture by magnetic decantation.

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Also of Interest


L. Cronin and co-workers systematically study the diverse class of polyoxometalates in their Review on page 1736 ff. Properties and aggregation states are rationalized using a “periodic system of polyoxometalates”.

Porous Dynamical Materialsfor002

Rotary motion in mesoporous p-phenylenesilica is significantly slowed by guest molecules. As described by P. Sozzani and co-workers in their Communication on page 1760 ff., the rotor speed changes from 1010 Hz in the empty channels to 103 Hz in guest-filled channels.

Membrane Proteinsfor003

The voltage-dependant anion channel (VDAC) is an important transport pathway for metabolites. In their Communication on page 1882 ff. A. Lange et al. determine the conformation of the N-terminal domain of functional human VDAC and find that the N-terminus adopts a defined and rigid structure.