Fig. 3. Evaluation of excited state self-quenching in [Cp*Ir(bpy-OMe)H][PF6] (1) by time-resolved photoluminescence spectroscopy. Observed lifetimes (τ, light gray left arrows) and Stern–Volmer analysis (τo = 54 ns, dark gray right arrows) in CH2Cl2. Excitation at 445 nm, luminescence decay monitored at 650 nm. The linear fit corresponds to a kq = 6.6 × 108 M−1 s−1.
