<Dl> <Dd> P i f = 1 − exp ⁡ (− 4 π 2 H i f 2 h v ∣ (s i − s f) ∣) (\ displaystyle P_ (if) = 1 - \ exp \ left (- (\ frac (4 \ pi ^ (2) (H_ (if) ^ (2))) (hv \ mid (s_ (i) - s_ (f)) \ mid)) \ right)) </Dd> </Dl> <Dd> P i f = 1 − exp ⁡ (− 4 π 2 H i f 2 h v ∣ (s i − s f) ∣) (\ displaystyle P_ (if) = 1 - \ exp \ left (- (\ frac (4 \ pi ^ (2) (H_ (if) ^ (2))) (hv \ mid (s_ (i) - s_ (f)) \ mid)) \ right)) </Dd> <P> where H is the interaction energy at the intersection, v the velocity of the system through the intersection region, s and s the slopes there . </P> <P> Fig. 3 Energy diagram for Electron Transfer including inner and outer sphere reorganization and electronic coupling: The vertical axis is the free energy, and the horizontal axis is the "reaction coordinate"--a simplified axis representing the motion of all the atomic nuclei (inclusive solvent reorganization) </P>

In outer sphere electron transfer how is the reaction rate related to the potential for the reaction