Uranium nitrides are attractive candidates for stoichiometric and catalytic N-transfer reactions, small molecule transformation, ^[1] and for advanced nuclear fuels. The N-C bond formation reactions are key steps in the construction of value-added chemical compounds. Recently we reported remarkable reactivity studies in f-element chemistry. Particularly desirable are the synthetic methods using cheap and available C₁ feedstock such as carbon dioxide or carbon monoxide.^[2] Tert-butoxysiloxides were shown to be very effective ligands in supporting the reactivity of low valent f elements with small molecules.^[3],[4] In particular, it was recently reported the remarkable reactivity of the previously described nitride bridged diuranium(IV) complex [Cs{[U(OSi(O^tBu)₃)₃]₂(μ-N)}] with CO₂, CS₂, and CO, yielding to diverse N-functionalized products ^5,6. Moreover, very recent results show that increasing the electron density by reducing the metal centers leads to a multimetallic K₃UNU nitride bridged diuranium(III) complex, 1 (Figure 1) which shows extraordinary reactivity towards the dinitrogen molecule. We will present the reduction and further functionalization of dinitrogen in ambient condition by a uranium nitride ⁷.