Linear9,10-Distyrylanthracene Derivatives:Design, Synthesis And Optical Property Study

Organic photoelectric functional materials increasingly highlight its position in material science and have attracted extensive attention since the1950s. Because of their unique properties and prospective applications in nanoscale biological and optoelectronic devices, such as organic electroluminescent, organic solid laser, photoelectric sensors,biological imaging and many other high-tech areas, they have become a new interdisciplinary cutting edge.In this paper, we synthetized three series of9,10-divinylanthracene derivatives and discussed the relationship between their molecular structure and photophysical properties.1. We synthetized a series of FLA-Cn,and we found that these compounds have strong AIE effect、Chain length dependencity and piezallochromy. To futher study, we found that the fluorescent light color of FLA-C12can self-recover after been grind. This kind of phenomenon is interesting and can be used in many ways. By the X-ray and DSC we found that, the mechanism of piezallochromy is the converse between crystalline and amorphous.2. We synthetized a series of FLA-Cn,and we found that these compounds have strong AIE effect、Chain length dependencity and piezallochromy. To futher study, we found that the recovery procedure after been grind is distinctive. That is when the length of the alkyl chain is long, the compounds is sencitive to the temperature; when the length of the alkyl chain is short, the compounds is dependent to the temperature. To futher study, we found the fusion and the original samples of PHC18all have fluorescence self-recover phenomenon. Unlike FLA-C12, they cann’t recover completely. The study of the recorver after grind is contributed to the exploration of piezallochromy.3. We synthetized a series of A2Cn, and we found that these compounds have strong AEE effect and piezallochromy. To futher study we found that, these compounds is special compared to the other series of AZCn in the chain length dependency and fluorescence quantum efficiency. Fluorescence quantum efficiency become high and the chain length dependency become weak. This fully shows that, adjusting the keyed position of the end group can obviously change the fluorescent property of the compound, it has a guiding significance to the synthetize of the compounds.