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The One-Electron Outer-Sphere Oxidation of Iodide and of Thiocyanide Ions by Transition Metal Complexes: Linear Free-Energy Relationships

1992; Taylor & Francis; Volume: 13; Issue: 3-4 Linguagem: Inglês

10.1080/02603599208052196

1548-9574

Gwyneth Nord,

Photochemistry and Electron Transfer Studies

Abstract The title reactions involve parallel and consecutive one-electron oxidations giving I, I2- and SCN, (SCN)2- as radical intermediates. In most cases the rates of the individual steps can be well predicted using linear free-energy relationships. The necessary reduction-potentials of the non-metal couples are derived from kinetic data for complexes of very different charge and ligand type.