Marcus theory is important method to study electron transfer reactions. There is an important equation for calculation of reorganization of solvation (Article Electron Transfer Reactions in Chemistry: Theory and Experim...
). However, when I refer to references, I didn't find what's the unit of parameters in this equation shown in the figure. For example, Δe is number of electron (count of 1, 2, 3,..., no unit) or is charge of electron (coulomb, C)? The r, a1, a2 is Å or others? The λ is eV or others?
Jean-François Gal
As far as I understand, lambda is a Gibbs (free) energy. I suppose that if you use the correct SI units, you'll get this parameter in kJ/mol, see for example
Kreevoy et al, Structure Sensitivity of the Marcus lambda... J. Am. Chem. Soc. 1988, 110, 524-530.
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