Large Acene Derivatives with B-N Lewis Pair Doping: Synthesis, Characterization, and Application.

Here, we report the synthesis of a novel class of B-N Lewis pair (LP B/N )-doped large acene derivatives ( 1a - 1d ) from the well-designed phenanthridine-based precursors. The resultant LP B/N -doped benzo-tetracene ( 1a ), dibenzo-heptacene ( 1b ), dibenzo-octacene ( 1c ), and V-shaped tribenzo-nonacene ( 1d ) are thoroughly characterized by X-ray crystallography, cyclic voltammetry, UV-vis absorption, and fluorescence spectroscopies together with DFT calculations. As a proof of concept, a 1a -based organic light-emitting diode device is fabricated to demonstrate the promising application in organic optoelectronics.