Fig. 13. ¹H NMR spectra of H-Phe-Leu-Ala-NH₂ (FLA) and H-Phe-Leu-NH₂ (FL) at various ratios with Q8, showing patterns of signal perturbation that indicate the binding modes shown schematically. CB[8] is Q8.⁵¹ Reproduced from ref. 51 with permission from the Royal Society of Chemistry.