Synhesis And Characterization Of Red Organic Lectroluminescent Materials And Their Spectral Properties

In this paper , we studied the red light material of maleimide derivative. The synthesis of a series of light-emitting materials had been accomplished starting from p-Bromobenzyl cyanide, and then, the relationship between the sructure and luminescence properties had been discussed.Chapter 1. The article briefly introduced the research progress of organic electroluminescent materials and centred on the red light-emitting materials. Organic red emitters was divided into three types: organic small molecular luminescent materials, transition metal complexes, and organic oligomers. The research progress of the organic small molecular luminescent materials had been introduced speciallyChapter 2. The Single Crystal of compound 2-8,2-10 and 2-13 had been Obtained during the experiment. We found that the two benzene rings in the diphenyl ether structure is not Coplanar but forming an angle of almost 90? with each other surface. The two benzene cyclics connected with the five-membered cyclic are not in the same level, but on both sides of the plane of five-membered cyclic at an angle.Chapter 3. We had been studied the spectral properties of target compounds2-9,2-10,2-11,2-12 and 2-13, the spectral properties showed that: the maxium emission wavelength of the diphenyl oxide compounds 2-10,2-11,2-12 and 2-13 is less than 580 nm. But the triphenylamine compound 2-9 haved 638 nm for the maxium emission wavelength, this is a real red light, these compounds have potential application valuation in development on red light-emitting materials.