FIGURE 13.

ECM application to chisosiamen A (23) and its truncated model 23a. (A) Drawing used to establish exciton chirality reported in the original publication. Adapted from ref. ¹¹⁷ , copyright 2021, with permission from Elsevier. (B) Lowest energy DFT conformer of 23a, displaying faint negative exciton chirality; the angles relevant for applying the ECM are measured as: α = 30°, β = 42°, γ = −4.4°