Reductive Cleavage of O-, S-, and N-Organonitroso Compounds by Nickel(I) β-Diketiminates

An electron-rich nickel(I) beta-diketiminate cleaves the E-NO bond of O-, S-, and N-organonitrosci species to give the nickel nitrosyl [Me3NN]NiNO along with dimeric nickel(II) alkoxide or thiolate complexes {[Me3NN]Ni}(2)(mu-E)(2) or the mononuclear nickel(II) amide [Me3NN]NiNPh2. This diamagnetic three-coordinate amide exhibits temperature-dependent NMR spectra due to a low-lying triplet state.