Blue-light-emitting multifunctional triphenylamine-centered starburst quinolines: synthesis, electrochemical and photophysical properties
作者:Peng Jiang、Dong-Dong Zhao、Xiao-Li Yang、Xiao-Lin Zhu、Jin Chang、Hong-Jun Zhu
DOI:10.1039/c2ob25120e
日期:——
2-aminophenyl ketones (3a–3g) in the presence of catalytic sulfuric acid and characterized well. They are thermally robust with high glass transition temperatures (above 176.4 °C) and decomposition temperatures (above 406 °C). These compounds emit blue fluorescence with λEmmax ranging from 433 to 446 nm in dilute toluene solution and 461 to 502 nm in the solid-state and have a relatively high efficiency
在催化作用下,通过Friedländer缩合4,4',4'-三乙酰基三苯胺(2)和2-氨基苯基酮(3a-3g)合成了一系列以三苯胺为中心的星爆喹啉(1a-1g)。硫酸并具有很好的特征。它们具有很高的耐热性,具有较高的玻璃化转变温度(高于176.4°C)和分解温度(高于406°C)。这些化合物发射具有蓝色荧光λ EM最大范围从433到在稀甲苯溶液446纳米和461至502纳米的固态和具有相对高的效率(Φ Ù = 0.98-0.57)。1a–1g的估计电离电势(IP)为4.54至6.45 eV,远高于或高于包括三(8-羟基喹啉)铝在内的知名电子传输材料(ETM)的电离电势(Alq 3)(IP = 5.7–5.9 eV)和先前报道的寡喹啉(IP = 5.53–5.81 eV)。使用DFT B3LYP / 6-31G *进行的量子化学计算显示,最高占据分子轨道(HOMO)为-5.05至-4.81