3,6,9,12-Tetrasubstituted Chrysenes: Synthesis, Photophysical Properties, and Application as Blue Fluorescent OLED
作者:Tien-Lin Wu、Ho-Hsiu Chou、Pei-Yun Huang、Chien-Hong Cheng、Rai-Shung Liu
DOI:10.1021/jo402429q
日期:2014.1.3
substituents result in large bathochromic shifts in the chrysene absorption and emission spectra. These new chrysene derivatives show blue fluorescent emission (401–471 nm) with high quantum yields (0.44–0.87). DFT calculations on these chrysenes rationalize well the substituent effects on their HOMO and LUMO energy levels. One representative chrysene (6g) was used as a blue fluorescent emitter in an OLED device
描述了未取代的substituted的短合成以提供该化合物的廉价来源。使用这种制备3,6,9,12-四溴omo,随后通过Suzuki,Sonogashira或Suzuki将其转化为带有4个芳基,炔基或氨基的3,6,9,12-四取代。布赫瓦尔德-哈特维格偶联反应分别。这些取代基导致的吸收和发射光谱发生大的红移。这些新的衍生物显示出蓝色荧光发射(401-471 nm),具有高量子产率(0.44-0.87)。对这些的DFT计算很好地说明了取代基对其HOMO和LUMO能级的影响。代表性的一克(6克)用作OLED器件中的蓝色荧光发射器,该器件具有出色的外部量子效率(η= 6.31%),具有蓝色发射[CIE(x,y)=(0.13,0.20)]和低开启电压(CIE(x,y)=(0.13,0.20)]。 3.0 V)。