Table 1. Kinetic data for [Ru(bpy')(dppz)(phen)]²⁺ and the methylindole radical (M_rad).

Measurement	Ru-GMG	Ru-GMG-GGG	Ru-GGG-GMG	Ru-mis-GMG
Luminescence lifetime of *[Ru]2+ -DNA*	τ1 = 71 ns (76%)	τ1 = 68 ns (76%)	τ1 = 72 ns (79%)	τ1 = 80 ns (74%)
	τ2 = 279 ns (26%)	τ2 = 227 ns (26%)	τ2 = 269 ns (26%)	τ2 = 280 ns (29%)
Mrad formation†‡	4 × 107 s-1	4 × 107 s-1	4 × 107 s-1	N/A
Mrad decay†§	1 × 106 s-1	¶	¶	N/A

All samples contained 20 μM Ru-duplex, 10 mM NaCl, 10 mM potassium phosphate (pH 7). N/A, not applicable.

^*The luminescence traces were fit to a biexponential function by a nonlinear least-squares method with convolution of the instrument response function. Uncertainties in values are ±10%.

^†Samples contained 15 eq of [Ru(NH₃)₆]³⁺.

^‡The rise of the signal at 600 nm was fit to a monoexponential function by a nonlinear least-squares method. Considering bandwidth used and region fit, these values represent lower limits.

^§The transient absorption decay at 600 nm corresponding to the M_rad was fit to a monoexponential function by a nonlinear least-squares method. Uncertainties in values are ±10%.

^¶No significant decay was observed over 50 μs.