含吡啶环的双醛腙类试剂的合成及其光谱研究

Synthesis of Pyridine-Containing Diacylhydrazones and Study on Their Spectral Properties

有机电致发光技术在彩色大屏幕平板显示技术方面己经显示出了广阔的应用前景，是当今国际平板显示技术领域研究的热点之一。开发性能优良的电子传输材料是提高有机及聚合物LED性能的关键。双席夫碱类金属配合物同时满足了电荷平衡和配位数饱和两个条件，可以得到非常纯的荧光，能够成为良好的电致发光材料。文章设计并合成了四种新的含吡啶环的双醛腙类化合物，通过红外光谱、元素分析、荧光光谱对合成的化合物进行了表征，确定了化合物结构。对所合成化合物红外光谱进行了分析，确定了该类化合物的红外特征吸收峰；荧光光谱表明该类化合物具有良好的荧光性，其最大发射波长在420-440nm之间，其荧光强度的大小与衍生物中不同的取代基有关，-OH、呋喃环、胡椒醛等起供电子作用的基团，使荧光波长发生红移。

Organic electroluminscent （OEL） technology has revealed the great potential application in flat panel display, and has attracted much interest all over the world. In order to create more efficient and high performance device, new materials with high electron transporting capability were demanded. Sehiff base complexes can be employed as emitting materials to fabricate electroluminescent device. Several pyridine diacylhydrazones compounds were synthesized. The structure of compounds was confirmed by IR, fluorescence spectrum and elementary analysis. The fluorescence spectra showed that these compounds have good fluorescence. The fluorescence emission wavelengths are between 420 and 440 nm, the fluorescence intensity is related to the substituent of the compounds. The Substituent of -OH, furan and piperonal donate electrons that lead to the red shift of fluo- rescence.