Molecular Design and Synthesis of Narrowband Near-Ultraviolet and Pure Deep-Blue Thermally Activated Delayed Fluorescence Materials by an Ether Group Strategy.

ABSTRACT: Boron-containing polycyclic aromatic hydrocarbons are promising materials for the development of displays due to their multiple-resonance thermally activated delayed fluorescence (MR-TADF) with narrowband emission. However, except for electrophilic aromatic borylation reactions, synthetic strategies for the generation of boron-containing MR-TADF molecules remain virtually unexplored. In particular, the synthesis of MR-TADF emitters that exhibit narrow near-ultraviolet and pure deep-blue emission constitutes a challenging task. Here, we present a directed tri-ortho-lithiation-borylation approach that provides a new family of N,N-bridge-type triphenylboranes that bear phenylimino groups instead of the methylene groups at the 8- and 14-positions and ether groups instead of the hydrogen atoms

SUBMITTER: Kitamoto Y 

PROVIDER: S-EPMC12322632 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature