Fig. 1. (a) Temperature-dependent absorption changes of L1 (5 × 10–4 M, MCH) from 363 K (red line) to 283 K (blue line) followed by time-dependent studies at 283 K for a period of 400 min. Inset: plot of A360vs. time and photographs showing the reversible sol-aggregate formation. (b) Partial VT–1H NMR spectra of L1 (5 × 10–4 M, MCH-d14) between 363 and 283 K followed by time-dependent studies at 283 K over a period of 60 min (initial lag is excluded). (c–e) AFM images of self-assembled L1 in MCH upon keeping the solution at 283 K for (c) 15 min, (d) 30 min and (e) 60 min on HOPG (initial lag is excluded) with cross-section analysis along the yellow lines.
