Figure 8.
Effect of proton concentration on formation and decay of the diiron(III,IV)–W• species. Increasing pH increases kf and kd of the ToMOH I100W transient. The rate constants both increase with decreasing [H+], with kf (▲) and kd (●) increasing ~ 2-fold between pH 6.5 and 7.5. The y-axis scales differ above and below the break.