Transient Exciplex Formation Electron Transfer Mechanism

Figure 12

Dependences of log𝑘_Q (top) and log (1/𝑘_Q−1/𝑘_Diff) (bottom) on Δ𝐺_ET^∗ for quenching of excited singlet states of cyanoaromatic compounds by methoxybenzenes and methylnaphthalenes in MeCN (according to the experimental data [15]). Best plots are shown for simulation of the experimental dependence by (3) (𝜆=0.25 eV) (dash line) and by concatenated mechanism (16) (solid line). Dotted line shows thermodynamic limit for ET.