Figure 5.

Assemblies in presence of light (concentrated solutions, 11.4 mM solutions in CHCl₃, 293 K). a) FTIR absorption spectra of TATA‐C12 before and after light irradiation (0–48 min), Zoom on the N−H region (left) and C=O regions (right). Arrows serve as a guide to the eyes for the evolution of the main bands upon increasing the irradiation time. b) EPR spectra of TATA‐C12 solution before and after light irradiation (0–48 min), Inset: Amount of TATA‐C12⋅+ species as a function of the irradiation time. c) SANS analyses of TATAC13 in CDCl₃ before irradiation and ca. 18 h after being irradiated for 12 min. At least 1.3 % of radicals are present in the sample (Figure S8c).