Two-Electron Reduction of a U(VI) Complex with Al(C<sub>5</sub>Me<sub>5</sub>)
Robert J. Ward, Iker Del Rosal, Danielle N. Chirdon, Steven P. Kelley, Michael L. Tarlton, Laurent Maron, Justin R. Walensky
Abstract
The reduction of U(VI) to U(IV) is rare, especially in one step, and not observed electrochemically as a one-wave, two-electron couple. Here, we demonstrate that reduction of the uranium(VI) bis(imido) complex, (C5Me5)2U[═N(4-OiPrC6H4)]2, is readily accomplished with Al(C5Me5), forming the bridging uranium(IV)/aluminum(III) imido complex (C5Me5)2U[μ2-N(4-OiPrC6H4)]2Al(C5Me5). The structure and bonding of the bridging imido complex is examined with electrochemical measurements in tandem with density functional theory calculations.
Topics & Concepts
ChemistryUraniumBridging (networking)ElectrochemistryDensity functional theoryTandemCrystallographyReduction (mathematics)ElectronActinideInorganic chemistryComputational chemistryPhysical chemistryMetallurgyNuclear physicsElectrodeComputer scienceMathematicsGeometryPhysicsMaterials scienceComputer networkComposite materialOrganometallic Complex Synthesis and CatalysisRadioactive element chemistry and processingCoordination Chemistry and Organometallics