5-((BENZ)IMIDAZOL-2-YL)BENZIMIDAZO[1,2-A]BENZIMIDAZOLES FOR ELECTRONIC APPLICATIONS

摘要

The present invention relates to compounds of formula
a process for their production and their use in electronic devices, especially electroluminescent devices. When used as charge transport material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability and/or spectral characteristics of electroluminescent devices.