Fig. 2. Evaluation of excited state quenching of [Cp*Ir(bpy-OMe)H][PF6] (1) by CH2Cl2 by time-resolved photoluminescence spectroscopy. Observed lifetimes (τ, light gray left arrows) and Stern–Volmer analysis (τo = 80 ns, dark gray right arrows) in CH2Cl2/CH3CN mixtures at a constant 1 mM concentration of 1. Excitation at 445 nm, luminescence decay monitored at 650 nm. In the axes, % volCH2Cl2 is the volume percent of CH2Cl2 and [CH2Cl2] is the concentration of CH2Cl2.
