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DOE OSTI · 2942645

Quantitative U=O bond activation in uranyl complexes via silyl radical transfer

Valerio, Leyla R.·Hakey, Brett M.·Brennessel, William W.·Matson, Ellen M.
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Abstract

Reductive silylation of the uranyl dication with 1,4-bis(trimethylsilyl)dihydropyrazine, or “Mashima's reagent”, is detailed. The reagent simultaneously delivers silylium ions and electrons to multiple uranyl complexes, i.e. a pyridine dipyrrolide uranyl complex and a common uranyl-containing starting material, UO 2 Cl 2 (OPPh 3 ) 2 . This reaction results in quantitative activation of thermodynamically robust U=O bonds. Furthermore, the reductive functionalization of environmentally persistent actinyl species with Mashima's reagent is seen as a promising solution for nuclear waste remediation.

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Valerio, Leyla R., Hakey, Brett M., Brennessel, William W., Matson, Ellen M.. 2022-08-30. Quantitative U=O bond activation in uranyl complexes via silyl radical transfer. https://doi.org/10.1039/d2cc04424b

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