Figure 13.
(A) (a) Chemical sketch of polymer 5, and (b) CPL (upper) and PL (lower) spectra of 5 in n-octane (red) and cyclo-octane (blue) (2.70 × 10−2 g/L). (B) (a, b) Chemical structures and CPL illustration of (R,R)-3; (c) CPL spectra of (R,R)-3 in different solvents. The solutions (~4.0 × 10−3 M) were excited at 355 nm. (A) Reproduced with permission (Nishikawa et al., 2017). Copyright 2017, American Chemical Society. (B) Reproduced with permission (Takaishi et al., 2020). Copyright 2020, American Chemical Society.