Chemistry Letters, Vol.38, No.2, 184-185, 2009
Cationic and Anionic Dinuclear Nickel Complexes [Ni(N2S2)Ni(dtc)](n) (n =-1,+1) Modeling the Active Site of Acetyl-CoA Synthase
Two dinuclear nickel complexes (Et4N)[Ni(mbpa)- Ni(dtc(Et))] (1) (dtc(Et) = diethyldithiocarbamate) and [Ni(dadt(Et))-Ni(dtc(Me))](BPh4) (2) (dtc(Me) = dimethyldithiocarbamate) have been synthesized as models for the active site of acetyl-CoA synthase (ACS). Cyclic voltammograms show that each complex exhibits it reduction wave, in which the reduction potential of the anion 1 exhibits a significant negative shift from that of the cation 2.