Redox behavior of the iron-sulfur cluster [Fe4Cp4S5][PF6]2 in protic organic solvents and aqueous micellar solutions

Abstract The structural and electronic stabilities of the title compound have been investigated in CH 3 CNCH 3 OH (100-0% to 0-100%) and in aqueous Triton X-100 micelles, by cyclic voltammetry and electronic absorption and EPR spectroscopies. The iron-sulfur cluster has been located in the peripheral polar zone of the micelle, where H 2 O molecules are also present. When incorporated in the micelle, the cluster shows satisfactory stability and appears to react, at its most reduced state, with the unsaturated substrate 4-methyl-l-cyclohexene.