Fig. 2: Synthesis and reactivity of complexes 2, 3, 4, and 5.
From: Photochemical Synthesis of Transition Metal-Stabilized Uranium(VI) Nitride Complexes

Complexes 3a and 3b with four azides were prepared by the reaction of complexes 2 with NaN3. By careful control of the irradiation time of complexes 3, the U(VI) nitrides 5 were formed via the U(V) nitrides intermediates 4. The nitride groups in complexes 5 react with acid or H2/acid to form NH4+ in good yield. The N atoms originating from N3− are shown in blue and transition metals (M) are shown in red.