Reductive N₂ Cleavage and Nitride Insertion Reactivity at Molybdenum Complexes Supported by a Rigid PNP Pincer.

ABSTRACT: Metal-nitride species represent key reactive intermediates in reductive N₂ cleavage and functionalization. Toward a better understanding of nitride transfer reactivity, we present a series of Mo-nitride complexes supported by a rigid diphosphino-acridane pincer ligand. Notably, the stepwise reduction of a Mo^IVCl₃ complex under N₂ allows the isolation of a bridging diazenido intermediate as well as a dinuclear Mo-nitride species (4) accommodating a bridging N₂ moiety. This is the first example of a Mo(IV) nitride-N₂ species, and extensive ¹⁵N-labeling studies were performed to characterize the bridging dinitrogen, diazenido, and nitride moieties. The structure of 4 adopts two orthogonal π-backbonding interactions b

SUBMITTER: Kim M 

PROVIDER: S-EPMC12377454 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature