Brominated B-1-Polycyclic Aromatic Hydrocarbons for the Synthesis of Deep-Red to Near-Infrared Delayed Fluorescence Emitters

Bromo-functionalizedB(1)-polycyclic aromatic hydrocarbons(PAHs) with LUMOs of less than -3.0 eV were synthesized andused in cross-couplings to form donor-acceptor materials. Thesematerials spanned a range of S-1 energies, with a numbershowing thermally activated delayed fluorescence and significant emission in the near-infrared region of the spectrum. These B-1-PAHsrepresent a useful family of acceptors that can be readily synthesizedand functionalized.

Automated summary

Bromo-functionalized B(1)-polycyclic aromatic hydrocarbons (PAHs) were synthesized and utilized in cross-couplings for the formation of donor-acceptor materials. These materials exhibited a range of S-1 energies, with some showing thermally activated delayed fluorescence and significant emission in the near-infrared region. The B-1-PAHs are a valuable family of readily synthesized and functionalized acceptors.