Uranium nitrides are attractive candidates for stoichiometric and catalytic N-transfer reactions, small molecule transformation, and for advanced nuclear fuels. However, the reactivity of molecular nitride compounds remains basically unexplored. Recently we identified synthetic routes to molecular polymetallic nitride complexes containing uranium in low oxidation state. We will present the remarkable reactivity of the nitride bridged diuranium(IV) complex Cs{(N)[U(OSi(OtBu)3)3]2}, with CO2, CS2 and CO, leading to the formation of new N-C bonds. Furthermore, we will show that the reduction of the metal centers leads to a multimetallic K3UNU nitride bridged diuranium(III) complex, which is able to effect the cleavage and functionalization of dinitrogen.

Synthesis and reactivity of multimetallic uranium nitrides

255th National Meeting (2018)

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