SCIB/RICC complexes on the cover of Andgewandte Chemie   
imgThe article Stable Pentavalent Uranyl Species and Selective Assembly of a Polymetallic Mixed-Valent Uranyl Complex by Cation-Cation Interactions, written by SCIB/RICC makes the internal cover of the last issue of Angewandte Chemie Int. Ed. Oligomeric cation-cation complexes of actinyls are highly relevant for nuclear waste reprocessing and the migration of actinides in the environment. The authors 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.
mmazzanti, 2009-10-22


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