23610-15-3Relevant articles and documents
Benzophenanthrene derivative and application thereof
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Paragraph 0070; 0075-0077, (2021/01/28)
The invention relates to a benzophenanthrene derivative and application thereof. The structural formula of the benzophenanthrene derivative is shown as a formula (I). The benzophenanthrene derivativeis a novel organic electroluminescent compound with a fused ring structure of indole, benzofuran and benzothienobenzophenanthrene, the intramolecular electron density is increased on the basis of benzophenanthrene, meanwhile, substituent groups are adjusted to increase the molecular steric hindrance, the pi-pi interaction between molecules is weakened, the internal quantum efficiency of moleculesis improved, and a shorter emission wavelength than conventional compounds is achieved. Meanwhile, the benzophenanthrene derivative hinders the generation of an organic intermolecular excitation-excitation compound and increases the internal electron density and stability, so that the effect and the service life of the organic electroluminescent device prepared from the benzophenanthrene derivative are obviously improved and prolonged.