Figure 4.
(a) UV–vis spectra and (b) normalized emission spectra of NBN-doped helicenes in toluene (∼1 × 10–5 M). Inset: Photograph of the toluene solutions under UV light (365 nm).
(a) UV–vis spectra and (b) normalized emission spectra of NBN-doped helicenes in toluene (∼1 × 10–5 M). Inset: Photograph of the toluene solutions under UV light (365 nm).