Fig. 2. (A) Chemical structures of the pseudo-para PCP compounds reported here, accessed via a one-pot Sonogashira cross-coupling. X-ray crystallographic structures shown as ORTEP representations for (B) asymmetric DPA–CN 5 and (C) symmetric DPA–DPA 2. (D) Normalized UV-vis absorption spectra of the compound library in toluene. (E) Normalized steady-state photoluminescence spectra of the 1–5 in non-polar toluene, establishing the high-energy localized excited state emission baseline.
