Provided are boron-containing compounds. Also provided are formulations comprising these boron-containing compounds. Further provided are OLEDs and related consumer products that utilize these boron-containing compounds.
dehydrative metal-free construction of the corresponding unsymmetrical biaryls. The reaction would proceed via (1) the activation of aryl sulfoxide with the anhydride, (2) interrupted Pummerer reaction of the resulting arylsulfonium with sulfonanilide, (3) [3,3] sigmatropicrearrangement to cleave the transient S–N bond and to form the prospective biaryl C–C bond, and (4) global aromatization. The
6<i>H</i>-Benzo[4,5]thieno[2,3-<i>b</i>]indole as a novel donor for efficient thermally activated delayed fluorescence emitters with EQEs over 20%
作者:Rajendra Kumar Konidena、Kyung Hyung Lee、Jun Yeob Lee
DOI:10.1039/c9tc04679h
日期:——
developed two novel indole-based electron donors, 6H-benzo[4,5]thieno[2,3-b]indole (synBTI) and 6H-benzofuro[2,3-b]indole (synBFI), for designing green thermally activated delayed fluorescence (TADF) emitters. Two TADF emitters, 2-(6H-benzo[4,5]thieno[2,3-b]indol-6-yl)-5-(4,6-diphenyl-1,3,5-triazin-2-yl)benzonitrile (BTITrz) and 2-(6H-benzofuro[2,3-b]indol-6-yl)-5-(4,6-diphenyl-1,3,5-triazin-2-yl)benzonitrile
在此报告中,我们开发了两种新型的基于吲哚的电子供体,即6 H-苯并[4,5]噻吩并[2,3- b ]吲哚(synBTI)和6 H-苯并呋喃[2,3- b ]吲哚(synBFI),用于设计绿色热激活延迟荧光(TADF)发射器。两个TADF发射体2-(6 H-苯并[4,5]噻吩并[2,3 - b ]吲哚-6-基)-5-(4,6-二苯基-1,3,5-三嗪-2-基)苄腈(BTITrz)和2-(6 H-苯并呋喃[2,3 - b ]吲哚-6-基)-5-(4,6-二苯基-1,3,5-三嗪-2-基)苄腈(BFITrz通过合成两个新的供体与一个芳基三嗪受体来合成。详细研究了供体单元中杂原子对TADF发射体的光物理和电致发光性质的影响。光物理分析表明,与同系物BFITrz相比,BTITrz显示出相对较小的单重态-三重态能量分裂,较短的延迟荧光寿命和较高的光致发光量子产率(PLQY)。结果,使用BTITrz发射