4-溴-N,N-二(4-叔丁基苯基)-苯胺的合成及其光谱性能的研究

以对溴苯胺和对叔丁基苯甲酸为原料,经Hofmann降解、Sandmeyer和Ullmann反应等反应,合成得到了一种具有空穴传输性能的环金属配合物电致磷光中间:4-溴-N,N-二(4-叔丁基苯基)-苯胺,反应产率为43.5%,产物结构经核磁氢谱、质谱得到了表征.紫外吸收光谱和荧光光谱研究表明:该化合物具有强烈的紫外-可见吸收和荧光发射性能,其氯仿溶液的最大紫外吸收波长为306 nm,最大荧光发射波长是543 nm.但薄膜的最大荧光发射波长蓝移至458 nm.

Synthesis and Spectral Studies of 4 - Bromo - N, N- Bis(4 - tert- butylphenyl) Phenylamine

4-bromo-N,N-Bis(4-tert-butylphenyl) phenylamine,which used as an intermediate of electrophosphorescent material,was synthesized using 4-bromoaniline and 4-tert-butylbenzoic acid as the initial materials through Hofmann degradation,diazotization and Ullmann reaction with a yield of 43.5%.The chemical structure was characterized with ~(1)H NNR and MS.The results showed that this compound had intense UV absorption and fluorescent properties.A maximum UV absorption peak at 306 nm and a fluorescent emission peak at 543 nm were exhibited in CHCl_(3).Compared to the solution fluorescent emission,the blue-shifted fluorescent emission peak at 458 nm was observed in its film.