phosphinite-nickel (0) species via a P–O bond formation coupled with a 2-e–redox change
at the nickel center. In the forward reaction, the nickel (0) dinitrogen species (PPOMeP) Ni
(N2)(2) and {(PPOMeP) Ni} 2 (μ-N2)(3) were formed from the reaction of (PPP) NiCl (1) with
a methoxy anion. In the backward reaction, a (PPP) Ni (II) moiety was regenerated from the
CO2 reaction of 3 with the concomitant formation of a methyl carbonate ligand in (PPP) Ni …