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设计并合成了一系列以三苯胺为核,芴衍生物为外围基团的有机蓝光小分子,该合成通过Suzuki反应在9-芳基芴的2位和(或)7位引入相同或不同取代基作为模块,并利用Friedel-Crafts反应将4-甲基三苯胺与这一系列模块结合.用NMR,MS和元素分析进行结构表征.荧光测试结果表明该类化合物溶液的荧光发射波长范围在442～466 nm之间,属蓝光发射.电化学测试显示该类材料的HOMO能级位于-5.15～-5.19 eV之间.差示扫描量热仪与热重分析得出化合物的玻璃化转变温度在166℃以上,热分解温度高于398℃,表明该类材料具有良好的热稳定性.
A series of small organic blue light molecules with triphenylamine as the nucleus and fluorene derivatives as the peripheral groups were designed and synthesized. The synthesis introduced the same or different substitutions at the 2-position and / or 7-position of 9-arylfluorene by Suzuki reaction As a module, 4-methyltriphenylamine was coupled to this series of modules by Friedel-Crafts reaction.The structures were characterized by NMR, MS and elemental analysis.Fluorescence test results showed that the fluorescence emission wavelength of this kind of compound solution ranged from 442 ~ 466 nm, blue emission.Electrochemical tests showed that the HOMO energy levels of these materials ranged from -5.15 to -5.19 eV.DGA and TG analysis showed that the glass transition temperature Above 166 ℃, the thermal decomposition temperature is higher than 398 ℃, indicating that this kind of material has good thermal stability.