Fig. 3: Host–guest recognition with CD macrocycles.
From: Color-tunable single-fluorophore supramolecular system with assembly-encoded emission

a Changes in the UV–Vis absorbance of compound 1 in H2O (25 μM) upon titration with a γ-CD aqueous solution (10 mM), blue line: spectra before γ-CD addition; red line: spectra after 1.5 equivalents of γ-CD were added; orange line: absorption after 10 equivalents of γ-CD were added. Inset: extinction coefficient changes of compound 1 at 374 nm as a function of the molar ratio of γ-CD. b CD spectra changes of compound 1 before and after the addition of the three types of CD macrocycles. c ITC data for compound 1 with γ-CD. Buffer solution: PBS = 0.05 M (pH = 5.2), cell: γ-CD = 0.07 mM, syringe: compound 1 = 0.75 mM.