Three-Coordinate Organoboron Compounds BAr2R (Ar= Mesityl, R= 7-Azaindolyl- or 2,2′-Dipyridylamino-Functionalized Aryl or Thienyl) for Electroluminescent Devices and Supramolecular Assembly
作者:Wen-Li Jia、Dong-Ren Bai、Theresa McCormick、Qin-De Liu、Michael Motala、Rui-Yao Wang、Corey Seward、Ye Tao、Suning Wang
DOI:10.1002/chem.200305579
日期:2004.2.20
Eight novel three-coordinate boron compounds with the general formula BAr(2)L, in which Ar is mesityl and L is a 7-azaindolyl- or a 2,2'-dipyridylamino-functionalized aryl or thienyl ligand, have been synthesized by Suzuki coupling, Ullmann condensation methods, or simple substitution reactions (L = p-(2,2'-dipyridylamino)phenyl, 1; p-(2,2'-dipyridylamino)biphenyl, 2; p-(7-azaindolyl)phenyl, 3; p-
铃木合成了八种通式为BAr(2)L的新颖的三配位硼化合物,其中Ar为1,2为L,L为7-氮杂吲哚基或2,2'-二吡啶基氨基官能化的芳基或噻吩基配体。偶联,乌尔曼缩合法或简单的取代反应(L =对-(2,2'-二吡啶基氨基)苯基1;对-(2,2'-二吡啶基氨基)联苯2;对-(7-氮杂吲哚基)苯基, 3;对-(7-氮杂吲哚基)联苯,4; 3,5-双(2,2'-二吡啶基氨基)苯基,5; 3,5-双(7-氮杂吲哚基)苯基,6;对-[3,5 -双(2,2'-二吡啶基氨基)苯基]苯基,7; 5- [p-(2,2'-二吡啶基氨基)苯基] -2-噻吩,8)。1、3和5-7的结构已通过X射线衍射分析确定。这些新的硼化合物是亮蓝色的发射体。已经成功地制造了使用化合物2或8作为发射极和电子传输层的电致发光器件。分子轨道计算(Gaussian 98)已确定化合物1-8的蓝色发射源于配体L的pi轨道与硼中心的p(pi