Fig. 2. (a) VT (cooling) UV-vis spectra of NDI-PEP-L in H2O/DMSO (8 : 2) [C = 0.01 mM], (b) cooling curve of NDI-PEP-L monitored at 383 nm and fitted to the cooperative model [cooling rate = 1 K min−1], and temperature-dependent (c) CD spectra of NDI-PEP-L and (d) NDI-PEP-D in H2O : DMSO (8 : 2) [C = 0.01 mM] indicate disassembly at 363 K and chirality inversion upon cooling back to 298 K. (e) VT (cooling) CD spectra of NDI-PEP-L in H2O/DMSO (8 : 2) [C = 0.01 mM], (f) corresponding cooling curve fitted to the cooperative model [cooling rate = 1 K min−1], and AFM images of NDI-PEP-L (g) at RT (KS-II) and (h) after cooling (TS) in H2O : DMSO (8 : 2).
