基于芴类蓝光发光材料的合成与表征

Synthesis and Characterization of Blue Light-Emitting Materials Based on Fluorene

以2-溴-9,9-二苯基-9H-芴为起始原料,通过Buchwald-Hartwig和Suzuki偶联反应,合成了目标化合物9,9-三苯基-N-[4′-(三苯基硅基)][1,1′-联苯-4-基]-芴-2-胺。利用1H NMR、MS、HPLC对目标化合物结构和纯度进行了鉴定,并通过DSC-TG、UV-Vis和荧光光谱研究了物质的热稳定性和光物理性能。研究表明,目标化合物具有较高的热稳定性,较宽的紫外吸收范围,其荧光发射波长是419 nm,位于蓝光区域,且半峰全宽为36 nm。工艺过程简单,产率高,在有机蓝光材料领域具有一定的应用前景。

Using 2-bromo-9,9-diphenyl-9H-fluorene as starting material,the target compound 9,9-triphenyl-N-[4′-(triphenylsilyl)[1,1′-biphenyl]-4-yl]-fluorene-2-amine is synthesized by Buchwald-Hartwig and Suzuki coupling reaction.The structure and purity of the target compound are identified by 1H NMR,MS and HPLC,and the thermal stability and photophysical properties of the material are studied by DSC-TG,UV-Vis and fluorescence spectroscopy.The results show that the target compound has high thermal stability and wide ultraviolet absorption range.Its fluorescence emission wavelength is 419 nm,which is located in the blue light region,and the full width at half maximum is 36 nm.The process is simple and the yield is high.It has a certain application prospect in the field of organic blue light materials.