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Time-dependent changes in electronic absorption and CD spectra of the enantiomers of chiral HBC amphiphile (S)-2 (a and b) and (R)-2 (c and d) in MeTHF (3 mg/ml) at 20°C, on rapid cooling from 50°C in a quartz cell of 0.1-mm path length. The spectra were taken with a 3-min interval. a.u., arbitrary units.
