Marcus Theory and the Role of Solvent

A high-speed channel electrode was used to measure the rates of electron transfer (kP) for 9,10-diphenylanthracene (DPA) in a variety of solvents. The oxidation of DPA is an outer-sphere one-electron process. It was foimd that the measured values of k were influenced by the reorientation dynamics of the solvent. 

Below is a table which shows the measured rate constants for the oxidation and the longitudinal dielectric relaxation times (ti) for the solvents [A.D. Clegg et al,. Am. Chem. Soc. 126 (2004) 6185]. 

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