Fig. 6. Excited state dynamics.

Summary of the rate constant for each process from the S₁ states of 1 (A) and 2 (B), where k_R, k_SF, k_Rec, k_Diss, k_T, k_Ex, and k_Lum are the rate constants for the S₁ → S₀ transition, SF, (T₁T₁)* → S₀ transition, dissociation of (T₁T₁)* into T₁ + T₁, T₁ → S₀ transition, excimer formation, and excimer → S₀ transition, respectively. Because of the time resolution of the instrument, it is difficult to precisely determine rate constants for the SF and S₁ → S₀ transition, which are very fast processes. Tables S1 and S2 summarize the lifetimes (τ) for each process.