Figure 4.

(a) Absorption spectral changes of cis-SG1 (0.4 mM) in toluene at 298 K under 385 nm light irradiation for 2 min and time-dependent changes during supramolecular polymerization. (b) Cryo-TEM image of SP-SG1 formed by cis-SG1 (0.4 mM) after photoinduced supramolecular polymerization. (c) Plots of the UV–vis absorption at 373 nm as a function of time during the photoinduced polymerization at different total concentrations (c_T). (d) DFT energy minimized structure of cis-SG1 (B3LYP 6-31G+(d,p), IEFPCM toluene). (e) Schematic illustration of the photoinduced supramolecular polymerization of cis-SG1.³²