基于螺二芴的深蓝光材料的设计合成及其表征

Design,Synthesis and Characterization of Deep-Blue Emission Materials Based on Spirobifluorene

以芴和2-溴-芴酮为原料,通过Buchwald-Hartwig等一系列反应合成了一种具有螺二芴类的有机发光材料N-([1,1′-联苯]-3-基)-N-(9,9-二甲基-9H-芴-2-基)-2′-苯基-9,9′-螺二[芴]-2-胺,可用作蓝光OLED发光材料以及空穴传输材料.通过研究表明:目标化合物具有较好的热稳定性,其热分解温度以及熔点分别为459℃和257℃;目标化合物具有深蓝光发射(415 nm),且具有高的三线态能级,有助于增强其作为OLED发光材料的发光性能.

An organic light-emitting material with spirobifluorene,N-([1,1′-biphenyl]-3-yl)-N-(9,9-dimethyl-9H-fluoren-2-yl)-2′-phenyl-9,9′-spirobifluorene-2-amine,was synthesized using fluorene and 2-bromo-fluorenone as starting materials through a series of reactions such as Buchwald-Hartwig,which can be used as blue OLED luminescent materials and hole transport materials.Research results showed that the target compound exhibits good thermal stability,with decomposition temperature and melting point of 459℃and 257℃,respectively.Additionally,the target compound exhibits deep blue light emission at 415 nm and possesses a high triplet energy level,which helps to enhance its luminescent performance as an OLED luminous material.