Journal
CHEMICAL SCIENCE
Volume 3, Issue 4, Pages 1075-1079Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2sc00782g
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Funding
- Commissariat a l'Energie Atomique
- Direction de l'Energie Nucleaire
- RBPCH
- Agence National de la Recherche [ANR-10-BLAN-0729]
- Agence Nationale de la Recherche (ANR) [ANR-10-BLAN-0729] Funding Source: Agence Nationale de la Recherche (ANR)
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The reaction of the UO2+ precursor [(UO2Py5)(KI2Py2)](n), with the potassium salt of the tetradentate aza beta-diketiminate ligand L (L = 2-(4-tolyl)-1,3-bis(quinolyl)malondiiminate) affords the first homometallic cation-cation complex of pentavalent uranyl. The complex [UO2L](3) has a new triangular geometry of the cation-cation interaction in the solid state, which gives rise to a clear magnetic interaction with a maximum in the plot of chi versus T at 12 K. It retains its solid state trinuclear structure in solution and is fully stable in organic anaerobic solvents, but reacts rapidly with molecular oxygen to form a rare dinuclear oxo complex of uranyl(VI), ([UO2(L)](2)[mu(2)-O]).
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