Figure 2.

Frequency-domain intensity decays of the Re-MLc donor(····) and of the D–A pair (larger dots) in propylene glycol at −20 (top) and 20°C (bottom). The data points for the Re-MLC donor alone decay are not shown but the multiexponential analyses are shown in Table 1. The solid lines shows the best fit using the distance distribution model with diffusion (Table 1). The dashed line shows the frequency-response expected for the D–A pair in the absence of D-to-A diffusion.