A near-infrared luminescent organic radical with switchable emission and SOMO-HOMO inversion via protonation/deprotonation process

We synthesized a novel NIR-emissive (785 nm) D-A•-type triphenylmethyl radical TTM-EMICz using a rigidly structured and large-conjugated donor 6-butylindolo[3,2-b]carbazole (ICz) unit. Studies showed that the non-Aufbau electronic structure and PL...