Fig. 1.
FTIR spectra of benzo-15-crown-5 powder (B15C5) (pink), 100% CS (black), 70:30 CS:B15C5 (red), 50:50 CS:B15C5 (green) and 40:60 CS:B15C5 (blue). (For interpretation of the references to color in figure legend, the reader is referred to the web version of the article.)