Figure 15.

(A) Chemical structures of (S)-DFB-Hex-amide and (S)-DFB-PhEt-amide. (B) Photographs of the samples obtained from deposition (AD), annealing (TA) and smearing (SM) for (S)-DFB-Hex-amide (a) and (S)-DFB-PhEt-amide (b). Under the excitation of 365 nm. (C) CPL spectra of (R/S)-DFB-Hex-amide (a and b) and (R/S)-DFB-PhEt-amide(c and d). Solid-state samples were deposited on paper. Blue color indicates the thermally annealed (TA) samples, while the pink color represents the mechanically smeared samples. (R) and (S) isomers are plotted using solid and dashed lines, respectively. Reproduced with permission (Louis et al., 2019). Copyright 2019, Royal Society of Chemistry.