“…11 The synthesis of phase pure ThN, [17][18][19] PuN, 20 and NpN 21 are also well established, however, these are less studied than uranium nitrides, with the most common synthetic route for actinide mono-nitrides involving carbothermic reduction of dioxides. 22 Molecular actinide-nitrides were rst isolated in noble gas matrices at cryogenic temperatures, and characterized by infrared spectroscopy for uranium (UN, N^UF 3 , N]U]N, N^U]N-H, NUN(NN) x , (UN)(NN) x ), [23][24][25][26][27][28] plutonium (PuN, PuN 2 ), 29 and thorium (ThN, NThN, NThO), [30][31][32] but are only stable at cryogenic temperatures. Since, molecular actinidenitrides have harnessed signicant attention due to their key role in understanding actinide bonding interactions, covalency, and electronic structure properties, as well as their ability to mediate important small molecule transformations.…”