Synthesis and characterization of starburst 9-phenylcarbazole/triazatruxene hybrids

Novel starburst triazatruxenes functionalized with six N-phenylated carbazole units have been synthesized and characterized. Good yields and high purity were readily obtained via an optimized microwave-enhanced six-fold Suzuki coupling methodology. High thermal stability and good amorphous properties as well as deep blue emissions (423-434 nm) were demonstrated. The introduction of six-substituted triazatruxene scaffolds could provide a new guideline for exploring novel solution-processable amorphous materials with dual functions for light-emitting and/or hole-transporting applications.