And Marcus theory

The RRKM (after Rice, Ramsperger, Kassel, and Marcus) theory is, basically, transition-state theory (see, in particular, the description in Section 6.2) applied to a unimolecular reaction. Thus, one focuses on the activated complex... 

In order to find the relationship between eqn (12.17) and Marcus theory, we approximate the free energy F ) as a parabolic function of under the linear response limit. Equation (12.17) is thus recast into ... 

The formal or midpoint potential (E°) of a redox species is calculated by averaging the reduction and oxidative peak potentials. The rate at which an ET occurs between electrode and cyt P450-heme center can be determined by acquiring the cyclic voltammograms with increasing scan rates and by applying the Buder-Volmer and Marcus theories. One can also obtain information about non-electrochemical processes associated with an electrochemical event from cycUc voltammetry. One example is proton-coupled ET. 

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