Figure 15: Dependences of l o g 𝑘 Q (top) and log ( 1 / 𝑘 Q 1 / 𝑘 D i ) (bottom) on Δ 𝐺 E T for quenching of singlet excited states of cyanoaromatic compounds by pyridine (triangles) and lutidine (circles) in MeCN (according to the experimental data of Wang et al. [48]). Best plots are shown for simulation of the experimental dependence by concatenated mechanism (16) (solid lines) and by (3) (lutidine, 𝜆 = 0 . 1  eV) (dash line). Dotted line shows thermodynamic limit for ET.