描述了一类新的杯状吡咯类似物的合成和阴离子结合特性,该类似物含有两个咔唑亚基,代替了通常在杯 [4] 吡咯中发现的四种丙酮桥联元件中的两种。根据游离体系和相应苯甲酸阴离子配合物的单晶 X 射线衍射分析判断,该化合物在固态时以翼状结构存在。从静态荧光猝灭实验中获得了二氯甲烷溶液中阴离子结合的证据;后者显示出相对于其他羧酸根阴离子(例如苯甲酸根、草酸根、琥珀酸根)以及各种其他阴离子底物(即氯离子和磷酸二氢根)而言,醋酸盐略有偏爱。在溴化物、硝酸盐和硫酸氢盐的情况下没有观察到结合的证据。
Synthesis and Characterization of Tungsten Alkylidene and Alkylidyne Complexes Featuring a New Carbazole-Based Rigid Trianionic ONO<sup>3–</sup> Pincer-Type Ligand
作者:Ushnish Mandal、Sudarsan VenkatRamani、Ion Ghiviriga、Khalil A. Abboud、Adam S. Veige
DOI:10.1021/acs.organomet.0c00150
日期:2020.6.22
of a rigid carbazole trianionic pincer ligand and its tungsten alkylidene [CBZ-ONO]W═CHtBu(OtBu) (3) and anionic alkylidyne Ph3PCH3}[CBZ-ONO]W≡CtBu(OtBu)} (4) complexes are reported. Designed to maximize the inorganic enamine effect by constraining the N atom lone pair, the carbazole ligand achieves high planarity. However, the orbital overlap remains similar to that of the flexible ligand [CF3–ONO]H3
刚性咔唑三阴离子钳配体的设计和合成及其钨亚烷基[CBZ-ONO]W═CH吨卜(O吨卜)(3)和阴离子次烷基博士3 PCH 3 } [CBZ-ONO]W≡报道了C t Bu(O t Bu)}(4)络合物。通过限制N原子孤对来最大程度地发挥无机烯胺作用,咔唑配体具有很高的平面度。但是,轨道重叠仍然与柔性配体[CF 3 –ONO] H 3(1)。无法合成中性亚烷基复合物。通过多核NMR光谱,燃烧分析,质谱和单晶X射线衍射对复合物进行表征。DFT计算显示出带有刚性和柔性配体的亚烷基配合物中的无机烯胺轨道重叠。
Dialkylaluminium complexes derived from 1,8-diphenyl-3,6-dimethylcarbazole: a new sterically hindered monodentate ligand system
作者:Stefan K. Spitzmesser、Vernon C. Gibson
DOI:10.1016/s0022-328x(03)00174-8
日期:2003.4
A new type of stericallyhindered, monodentate ligand system based on the carbazolide frame is introduced. (1,8-diphenyl-3,6-dimethylcarbazolide)AlR2 (4, R=Me; 5, R=Et) complexes have been prepared by N-lithiation of the carbazole, followed by reaction with the appropriate dialkylaluminium chloride. Treatment of the dialkyl complexes 4 and 5 with B(C6F5)3 or [H(OEt2)2][B3,5-(CF3)2C6H3}4] affords [LAlR]+
介绍了一种基于咔唑内酯骨架的新型位阻单齿配体系统。(1,8-二苯基-3,6-二甲基咔唑)AlR 2(4,R = Me;5,R = Et)配合物是通过咔唑的N-锂化反应,然后与适当的氯化二烷基铝反应而制备的。用B(C 6 F 5)3或[H(OEt 2)2 ] [B 3,5-(CF 3)2 C 6 H 3 } 4 ]处理二烷基络合物4和5得到[LAIR] +物种之后是烷基/ Ar F交换产生的产物。阳离子物种烷基铝被发现乙烯低聚至C 4 C 10烯烃产物。
ORGANOMETALLIC COMPOUND, ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE ORGANOMETALLIC COMPOUND, AND DIAGNOSTIC COMPOSITION INCLUDING THE ORGANOMETALLIC COMPOUND
申请人:SAMSUNG ELECTRONICS CO., LTD.
公开号:US20180248137A1
公开(公告)日:2018-08-30
An organometallic compound represented by Formula 1:
wherein, in Formula 1, groups and variables are the same as described in the specification.
Preparation and Study of 1,8-Di(pyrid-2′-yl)carbazoles
作者:Maria S. Mudadu、Ajay N. Singh、Randolph P. Thummel
DOI:10.1021/jo801132w
日期:2008.9.1
series of three derivatives of 1,8-di(pyrid-2'-yl)carbazole were prepared by Stille-type coupling of 2-(tri-n-butylstannyl)pyridine with the appropriate 1,8-dibromocarbazole. The carbazoles were prepared by appropriate substitution methodologies on the parent carbazole or by palladium-catalyzed cyclization of di-(p-tolyl)amine to provide the carbazole ring system. An X-ray structure of the di-tert-butyl
Bis(pyrazolyl)carbazole as a Versatile Ligand for Supporting Lutetium Alkyl and Hydride Complexes
作者:Kevin R. D. Johnson、Breanne L. Kamenz、Paul G. Hayes
DOI:10.1021/om500226t
日期:2014.6.23
trigonal-bipyramidal geometry. Hydrogenolysis of (CzPziPr)Lu(CH2SiMe3)2 afforded a trimetallic lutetium hydridecomplex that possesses five bridging hydride ligands. Notably, intramolecular C–H bond activation of the CzPziPr ligand was found to occur during the formation of this latter hydridecomplex, with metalation of a pyrazole carbon atom.