Abstract
The dependence of rate, entropy of activation, and (1H/ 2H) kinetic isotope effect for H-atom transfer from a series of p-substituted phenols to cubane Mn4O4L6 (L = O2PPh2) (1) reveals the activation energy to form the transition state is proportional to the phenolic O-H bond dissociation energy. New implications for water oxidation and charge recombination in photosystem II are described.
| Original language | English |
|---|---|
| Pages (from-to) | 11843-11847 |
| Number of pages | 5 |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 16 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - Jun 28 2014 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Cite this
Carrell, T. G., Smith, P. F., Dennes, J., & Dismukes, G. C. (2014). Entropy and enthalpy contributions to the kinetics of proton coupled electron transfer to the Mn4O4(O2PPh 2)6 cubane. Physical Chemistry Chemical Physics, 16(24), 11843-11847. https://doi.org/10.1039/c3cp55200d