Fig. 7. Left: Stacked UV-Vis spectra for titration of 7b (1.1 × 10–5 M) with TBAH2PO4 (2.9 × 10–4 M) in CHCl3 containing 3% (v/v) CH3OH. Right: Binding curve fitting plotted from titration data at 302 nm. Ka = (1.4 ± 0.2) × 105 M–1.
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