Angewandte Chemie International Edition

Cover image for Vol. 56 Issue 51

Editor: Neville Compton; Editor Emeritus: Peter Gölitz

Online ISSN: 1521-3773

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

48_45b/2009Inside Cover: Stable Pentavalent Uranyl Species and Selective Assembly of a Polymetallic Mixed-Valent Uranyl Complex by Cation–Cation Interactions (Angew. Chem. Int. Ed. 45/2009)

Oligomeric cation–cation complexes of actinyls are highly relevant for nuclear waste reprocessing and the migration of actinides in the environment. In their Communication on page 8477 ff., M. Mazzanti et al. show that the N,N'-bis(salicylidene)ethylenediamine (salen) ligand can stabilize uranium in the pentavalent state. A tetrametallic cation–cation complex shows stability towards disproportionation and hydrolysis, and an unambiguous antiferromagnetic coupling between the four oxo-bridged uranium centers.

Read Full Text  | Table of Contents