Table 1.

Best-fit parameters to the triexponential decay function shown below obtained from transient absorption kinetic measurements with 450-nm monitoring at 22 ± 1 °C with 3.2-mJ, 425-nm excitation for RuP- and 1-derivatized FTO|nanoITO/TiO₂ electrodes immersed in aqueous pH 4.6 solutions with 0.5 M LiClO₄ and 20 mM acetate/acetic acid buffer

Complex	A1	τ1	A2	τ2	A3	τ3	<τ>
10 µs
RuP	0.13	75 ns	0.15	1.4 µs	0.71	36 µs	36 µs
1	0.46	30 ns	0.17	546 ns	0.38	88 µs	88 µs
400 µs
RuP	0.28	4 µs	0.36	35 µs	0.36	248 µs	219 µs
1	0.43	0.5 µs	0.16	46 µs	0.41	812 µs	795 µs

The first 10 µs and first 400 µs were fit separately to independent triexponential functions: ΔA = A₁·exp(−t/τ₁) + A₂·exp(−t/τ₂) + A₃·exp(−t/τ₃) with <τ> = (A₁·(τ₁)² + A₂·(τ₂)² + A₃·(τ₃)²)/(A₁τ₁ + A₂τ₂ + A₃τ₃).