Table 2.

Electrochemical and Thermodynamic Driving Force for D⋯A Systems^a

	Fc–am		Fc–mam
	pH 5.5	pH 11	pH 5.5	pH 11
EFe(III/II) (V)b	0.522 (0.732)	0.438 (0.648)	0.368 (0.578)	0.368 (0.578)
ΔGET (eV)c	−0.878	−0.962	−1.032	−1.032

^aThe reduction potential of the [Ru(bpy)₃]²⁺ is −0.680 V vs Ag/AgCl (−0.470 vs NHE) and the excited-state reduction potential is 1.61 V. All electrochemical measurements were carried out in solutions of 100 mM potassium phosphate supporting electrolyte in nanopure water.

^bvs Ag/AgCl (vs NHE), where Ag/AgCl in 3 M KCl is 0.210 vs NHE.⁴⁶

^c−ΔG_ET = E_Ru(II*/I) − E_Fe(III/II) and E_Ru(II*/I) = ΔG_es + E_Ru(II/I) vs NHE, where ΔG_es([Ru(bpy)₃]²⁺)= 2.08 eV