Friedel-Crafts arylmethylation: A simple approach to synthesize bipolar host materials for efficient electroluminescence
作者:Chang-Jin Ou、Jin-Yi Lin、Jie Mao、Shuang-Quan Chu、Yu Zhao、Ling-Hai Xie、Hong-Tao Cao、Xin-Wen Zhang、Ying Wei、Wei Huang
DOI:10.1016/j.orgel.2016.08.018
日期:2016.11
In order to simplify the synthesis of bipolar host materials of OLEDs, a facile synthetic approach was developed and a series of sulfone-contained bipolar host materials were synthesized via mild one-step Friedel-Crafts arylmethylation. Due to π-conjugate-interrupted connection between donor moiety and sulfone moiety, those materials keep high triplet energy and separate the HOMO and LUMO levels. Furthermore
为了简化OLED的双极性主体材料的合成,开发了一种简便的合成方法,并通过温和的一步式Friedel-Crafts芳基甲基化合成了一系列含砜的双极性主体材料。由于供体部分和砜部分之间的π-共轭间断连接,这些材料保持了较高的三线态能量,并分隔了HOMO和LUMO含量。此外,引入砜基可以显着降低LUMO水平。基于新合成的基于砜的双极主体材料,以16.5 cd / A的高电流效率制备了有效的溶液处理的天蓝色磷光OLED。我们的结果表明,Friedel-Crafts芳基甲基化是构建双极宿主材料的有力合成策略。