Terminal Vanadium Hydride through Oxidative C-H Cleavage and Its Application in Reduction of O.

We reported the synthesis and characterization of a novel vanadium hydride complex {[NNCHCH]VH}{K} () obtained through intramolecular C-H oxidative addition with an in situ-generated low-valent vanadium intermediate. This vanadium hydride exhibits strong reducing properties and is capable of activating O through a 4-electron reduction process. Simultaneously, it forms dioxovanadate complex with a regenerated Csp-H bond and oxovanadium complex . Feasible mechanisms for the formation of and were proposed based on the deuterium-labeled experiments and DFT calculations.