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Inside Cover Stable Pentavalent Uranyl Species and Selective Assembly of a Polymetallic Mixed-Valent Uranyl Complex by CationЦCation Interactions (Angew. Chem. Int. Ed. 452009)

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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.
Inside Cover
Victor Mougel, Pawel Horeglad, Grgory Nocton, Jacques Pcaut, and
Marinella Mazzanti*
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.
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species, complex, interactions, pentavalent, 452009, selective, uranyl, valenti, mixed, cationцcation, stable, int, cover, angel, assembly, chem, insider, polymetallic
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