Synthesis, Structure, and Physical Properties of 5,7,14,16‐Tetraphenyl‐8:9,12:13‐bisbenzo‐hexatwistacene

A novel compound, 5,7,14,16‐tetraphenyl‐8:9,12:13‐bisbenzo‐hexatwistacene (TBH), has been successfully synthesized through a retro‐Diels–Alder reaction. Single‐crystal structure analysis indicated that TBHhas a twisted configuration with a torsion angle of 27.34°. The HOMO–LUMO gap of TBHcalculated from the difference between the half‐wave redox potentials (E1/2ox=+0.40 eV and E1/2red=−1.78 eV) is 2.18 eV, which is in good agreement with the band gap (2.19 eV) derived from the UV/Vis absorption data. In addition, organic light‐emitting devices using TBHas emitter have been fabricated. The results revealed that TBHis a promising red light‐emitting candidate for applications in organic light‐emitting diodes.