αβ and (Fig. ) transition density at three coupling strengths A 0 = 0.0, 0.02, and 0.05 a.u. (see Theoretical Details for more information on NTOs and transition density). At A 0 = 0.0 a.u., the character of the CT 1 exciton is evident as the electron and hole NTOs are spatially separated across both arms while the transition density is only present at the corner where the electron/hole NTOs are strongly overlapping.