Unlocking Structurally Nontraditional Naphthyridine-Based Electron-Transporting Materials with C–H Activation–Annulation
作者:Anping Luo、Yuanyuan Bao、Xiaoyu Liu、Junjie Liu、Weiguo Han、Ge Yang、Yudong Yang、Zhengyang Bin、Jingsong You
DOI:10.1021/jacs.3c14297
日期:2024.3.6
The inherent benefits of C–H activation have given rise to innovative approaches in designing organic optoelectronic molecules that depart from conventional methods. While theoretical calculations have suggested the suitability of the 2,6-naphthyridine scaffold for electron transport materials (ETMs) in organic light-emitting diodes (OLEDs), the existing synthetic methodologies have proven to be insufficient
C-H 活化的固有优势催生了不同于传统方法的有机光电分子设计创新方法。虽然理论计算表明2,6-萘啶支架适用于有机发光二极管(OLED)中的电子传输材料(ETM),但现有的合成方法已被证明不足以构建多个芳基化和全芳基-取代的分子。在此,我们提出了一种合成2,6-萘啶衍生物的解决方案,其中铑催化的富马酸与炔烃的连续C-H活化-成环过程是该策略中的关键步骤。基于2,6-萘啶骨架专门设计和合成的ETM具有令人印象深刻的282°C高玻璃化转变温度( T g )和高电子迁移率(μ e ),为OLED中的ETM设定了新基准μ e超过 10 –2 cm 2 V –1 s –1 。这些材料被证明是适用于红色、绿色和蓝色磷光 OLED 器件的多功能 ETM 候选材料。