Fig. 4. Chiroptical properties of CDI 4ab in solution. (a) Assembly of aggregate in MeOH or NEt3, and disassembly of aggregate with increasing temperature or CHCl3. (b) CD and CPL spectra (λex = 450 nm) of 4a (l-isomer) and 4b (d-isomer) in CHCl3 and MeOH (10 µM). (c) Loss of CD of 4a in 25% CHCl3 in MeOH upon heating.
