Solvent Effects in Electron Transfer Reactions

Solvent effects on electron transfer rate constants have been considered in a more general review. Besides extending the range of compounds which are accessible to mechanistic study, the use of nonaqueous solvents can allow investigations of effects not possible in aqueous solution. [Pg.30]

HOCH2CH2OH/H2O mixtures over an 80° temperature range. Plots of log k vs. [Pg.30]

Ferrocene, [Fe(Cp)2], self-exchange has also been studied by nmr in a variety of solvents. The rates do not vary with solvent dielectric as predicted by Marcus [Pg.30]

A dielectric dependence on the rate of reaction between Fe and FeOH in mixed alcohol-water solvents is explained by the dominance of electrostatic repulsion and an Fe-Fe distance of 7-8 A is estimated. In mixed pyridine/H20, reaction is between Fe(py) and FeOH The oxidation of U(IV) to U(VI) by Ce(IV) has been studied in (CH3)2CO. [Pg.30]

Thermodynamic parameters associated with formation of the bridged precursor (10) in the [Co(NH3)5Cl] oxidation of Fe in DMF indicate a [Pg.30]

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