Unidentate and Bidentate Binding of Nickel(Ⅱ) Complexes to an Fe_4S_4 Cluster via Bridging Thiolates: Synthesis, Crystal Structures, and Electrochemical Properties of Model Compounds for the Active Sites of Nickel Containing CO Dehydrogenase/Acetyl-

摘要

The redox properties of clusters 3, 5, and 6 were determined by cyclic voltammetry. In dichloromethane solution 5 exhibits two quasi-reversible oxidation processes at 0 and +485 mV and one quasi- reversible reduction wave at -1050 mV (vs SCE).