Issue 80, 2022

Quantitative U[double bond, length as m-dash]O bond activation in uranyl complexes via silyl radical transfer

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, UO2Cl2(OPPh3)2. This reaction results in quantitative activation of thermodynamically robust U[double bond, length as m-dash]O bonds. The reductive functionalization of environmentally persistent actinyl species with Mashima's reagent is seen as a promising solution for nuclear waste remediation.

Graphical abstract: Quantitative U [[double bond, length as m-dash]] O bond activation in uranyl complexes via silyl radical transfer

Supplementary files

Article information

Article type
Communication
Submitted
08 Leq 2022
Accepted
29 Leq 2022
First published
30 Leq 2022

Chem. Commun., 2022,58, 11244-11247

Author version available

Quantitative U[double bond, length as m-dash]O bond activation in uranyl complexes via silyl radical transfer

L. R. Valerio, B. M. Hakey, W. W. Brennessel and E. M. Matson, Chem. Commun., 2022, 58, 11244 DOI: 10.1039/D2CC04424B

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