1-(Aromatic- or heteroaromatic-substituted)-3-(heteroaromatic substituted)-1,3-propanediones and uses thereof
申请人:——
公开号:US20030229079A1
公开(公告)日:2003-12-11
Certain 1-(aromatic- or heteroaromatic-substituted-3-(heteroaromatic substituted)-1,3-propanediones are described as inhibitors of HIV integrase and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described.
[EN] SPIRO-CONTAINING PLATINUM (II) EMITTERS WITH TUNABLE EMISSION ENERGIES AND SYNTHESES THEREOF<br/>[FR] ÉMETTEURS DE PLATINE (II) À BASE DE SPIRO AYANT DES ÉNERGIES D'ÉMISSION RÉGLABLES ET SYNTHÈSES DE CEUX-CI
申请人:UNIV HONG KONG
公开号:WO2019144845A1
公开(公告)日:2019-08-01
An asymmetric tetradentate metal complex of a N^C^C^N comprising tetradentate ligand has a metal connected to binding sites which are connected to each other via three or four covalent bonds that can be either single or double bonds with bridging linkers reside between C^C and C^N moieties. These linkers result in three-dimension metal complexes with distorted square planar geometries. The four donor atoms coordinate to a metal center. Upon metal binding a 5-6-6 membered metallocycle is formed upon chelation including a first nitrogen donor bond, a first metal-carbon bond, a second metal-carbon bond, and a second nitrogen donor bond. The light emission from these metal complexes can be tuned by the ligand structure over the entire visible spectrum.
Structurally robust phosphorescent [Pt(O^N^C^N)] emitters for high performance organic light-emitting devices with power efficiency up to 126 lm W<sup>−1</sup> and external quantum efficiency over 20%
作者:Gang Cheng、Steven C. F. Kui、Wai-Hung Ang、Man-Ying Ko、Pui-Keong Chow、Chun-Lam Kwong、Chi-Chung Kwok、Chensheng Ma、Xiangguo Guan、Kam-Hung Low、Shi-Jian Su、Chi-Ming Che
DOI:10.1039/c4sc01105h
日期:——
A series of robust, bulky and strongly emissive platinum(II) complexes supported by tetradentate O^N^C^N ligands with tert-butyl groups (1–4), a bridging tertiary amine (5) or a biphenyl group with a spiro linkage (6) at the periphery of the [O^N^C^N] ligand scaffold have been prepared. Their photophysical properties were examined by absorption and emission spectroscopy, density functional theory calculations
由具有叔丁基(1-4),桥联叔胺(5)或带有螺环的联苯基的四齿O ^ N ^ C ^ N配体支持的一系列坚固,庞大且强发射的铂(II)配合物已经制备了在[O ^ N ^ C ^ N]配体支架的外围的连接键(6)。通过吸收和发射光谱,密度泛函理论计算和超快时间分辨发射测量,检查了它们的光物理性质。这些复合物显示高达95%的发射量子产率,具有发射最大值λ最大为522至570纳米的范围内,并且具有向上的良好的热稳定性,以Ť d> 423°C。值得注意的是,ķ q的值4-6是在8.5×10的范围内6〜2.0×10 7摩尔-1分米3个小号-1,比(〜10小8至10 9摩尔-1分米3个小号-其他已报告的Pt(II)的1))复合体。[O 2 N 2 C 2 N]配体外围的庞大基团不利于分子间相互作用,因此在溶液中形成准分子。这些络合物是用于OLED的良好发光材料(掺杂剂),因为即使在高掺杂剂浓度下,三重
Organic electroluminescent materials and devices
申请人:Universal Display Corporation
公开号:US09461254B2
公开(公告)日:2016-10-04
Novel phosphorescent platinum complexes containing tetradentate ligands are provided. The disclosed compounds have three 6-membered metallocycle units in each tertadentate ligand. The disclosed compounds have desirable electronic properties that make them useful when incorporated into a variety of OLED devices.