Table 9. Energies of Reactions (ΔE, in kcal mol^–1), Gibbs Free Energies of Reaction (ΔG, in kcal mol^–1), Reorganization Energies (λ, in kcal mol^–1), Activation Energies (ΔG^≠, in kcal mol^–1), and Rate Constants (k, M^–1 s^–1), for the SET Pathways of the Complexes with ^•OH under Studied Conditions.

Species	Form		Site	ΔE	ΔG	λ	ΔG≠	K
His–	mono	uni	C11	30.9	16.6	24.4	17.2	1.42 × 10°
			C12	29.3	16.8	22.5	17.2	1.53 × 10°
		bi	C11C12	34.1	11.4	32.7	14.9	7.27 × 101
	Bis		C11C12	39.5	14.9	34.7	17.7	6.59 × 10–1
His2–	Bis		C11C12	13.6	–4.0	27.6	5.0	9.58 × 108