A variety of arylamines are shown to undergo oxidative C–C bond formation using quinone-based chloranil/H+ reagent as the recyclable organic (metal-free) oxidant system to afford benzidines/naphthidines. Arylamines (3°/2°) designed with various substituents were employed to understand the steric as well as electronic preferences of oxidative dimerization, and a mechanism involving amine radical cation
使用基于醌的氯腈/ H +试剂作为可循环使用的有机(无金属)氧化剂体系,可以显示出多种芳基胺进行氧化C-C键形成,以提供联苯胺/萘啶。设计了具有各种取代基的芳胺(3°/ 2°)用于理解氧化二聚作用的空间和电子偏好,并提出了涉及胺自由基阳离子的机理。通过氧化CC偶联获得的四苯基联苯胺衍生物已通过简单的化学转化进一步转化为发射蓝色光的空穴传输材料。这项研究强调了以简单,经济和有效的方式准备新型HTM。
유기 화합물 및 이를 포함하는 유기 전계 발광 소자
申请人:DOOSAN CORPORATION 주식회사 두산(119987140410) Corp. No ▼ 110111-0013774BRN ▼107-81-00237
公开号:KR20160012500A
公开(公告)日:2016-02-03
본 발명은 내열성, 정공 수송능, 전자 저지능 등이 우수한 신규 화합물을 하나 이상의 유기물층에 포함함으로써 발광효율, 구동 전압, 수명 등의 특성이 향상된 유기 전계 발광 소자에 관한 것이다.
Tricarbonylrhenium(I) Complexes of Dinucleating Redox-Active Pincer Ligands
作者:James R. Gardinier、Jeewantha S. Hewage、Brian Bennett、Denan Wang、Sergey V. Lindeman
DOI:10.1021/acs.organomet.8b00013
日期:2018.3.26
The oxidized complexes 1n+ and 2n+ (n = 1, 2) were prepared by chemical oxidation and were studied spectroscopically (UV–vis/NIR, EPR). The mono-oxidized complex 1+ behaves as a Robin–Day Class III species, while 2+ is a Robin–Day Class II species that shows thermal valence trapping at 77 K by EPR spectroscopy. As suggested from theoretical studies using DFT methods, the oxidized complexes maintain considerable
已经准备了两种新的具有氧化还原活性的双核夹钳配体的同双金属三羰基hen(I)络合物,以评估间隔物大小对单核类似物和分子内电子通讯对第一氧化电位的影响。新的钳形配体具有两个三齿NNN-位点,每个位点由两个吡唑基侧翼供体和一个二芳基酰胺锚定,这些位点可以直接连接(以形成中心亚苄基核心H 2(L1)),也可以通过对-亚苯基连接(以形成对-对苯二胺核心,H 2(L2))。去质子化配体[ FAc -Re(CO)3 ] 2的双金属配合物(μ-L1),1,和[ FAC -Re(CO)3 ] 2(μ-L2),2,得到充分表征在溶液中并且包括由单晶X射线衍射用于固态1。每种的电化学性质在很大程度上取决于溶剂和电解质。配合物1在所有含电解质的溶液中均表现出两个单电子氧化,但取决于条件,第一和第二氧化电位之间的间隔ΔE 1/2在119至316 mV之间。另一方面,2的循环伏安法显示在NBu 4 PF 6的DMF
Organic light-emitting material and method for producing an organic material
申请人:Takada Ichinori
公开号:US20070149815A1
公开(公告)日:2007-06-28
An organic light-emitting material characterized in that it is used in a light emitting layer in a green light emitting element and represented by the following general formula (1):
wherein: n
1
is an integer of 0 to 3; R
1
is an alkyl group having 10 carbon atoms or less; Ar
1
is a monovalent group which is derived from monocyclic or fused-ring aromatic hydrocarbon having 20 carbon atoms or less, and which optionally has a substituent having 10 carbon atoms or less; and Ar
2
is a divalent group which is derived from a ring assembly having 30 carbon atoms or less and being comprised of monocyclic or fused-ring aromatic hydrocarbon having 1 to 3 rings, and which optionally has a substituent having 4 carbon atoms or less. There can be provided an organic light-emitting material which has satisfactorily excellent light emission efficiency and high color purity as well as higher reliability and which is advantageously used to constitute a green light emitting layer, and a method for producing the same.
Nickel-Catalyzed <i>N</i>-Arylation of Diarylamines for Triarylamine Synthesis
作者:Kunjun Hu、Yunlong Gao、Jian Jin
DOI:10.1021/acs.organomet.2c00025
日期:2022.3.14
A practical nickel-catalyzed C–N cross-coupling reaction between diarylamines and aryl halides has been developed using commercially available NiCl2(dppf) as the catalyst. This robust method can be efficiently applied to a variety of diarylamines which are privileged motifs in materials science, including phenoxazines, phenothiazines, carbazoles, diphenylamines, 9-10-dihydroacridines, 10,11-dihydro-5H-dibenzo[b
已经使用市售的 NiCl 2 (dppf) 作为催化剂,开发了一种实用的镍催化二芳基胺和芳基卤化物之间的 C-N 交叉偶联反应。这种稳健的方法可以有效地应用于各种二芳基胺,它们是材料科学中的特权基序,包括吩恶嗪、吩噻嗪、咔唑、二苯胺、9-10-二氢吖啶、10,11-二氢-5 H-二苯并[ b , f ]氮杂类、5 H-二苯并[ b , f ]氮杂类和 9 H-三苯并[ b , d , f ]氮杂类。