Figure 5
Fluorescent titration curves of 2 (1.0 × 10−6 M) in the existence of various concentrations of OAc− in H2O/CH3CN (v/v = 1/1). COAc− for curves 1–19 are 0, 0.2, 0.5, 1, 1.6, 2.4, 4, 8, 14, 20, 24, 28, 32, 36, 40, 44, 48, 54, 60 × 10−6 M (λex = 254 nm). Inset: F/F0 of 2 at 421 nm as a function of COAc− (λex = 254 nm, slit: em = 3 nm, ex = 5 nm) at 25 °C.
