立体拥挤的二膦甲烷配体:t Bu 2 PCH 2 P t Bu 2及其相关物种的分子结构,紫外光电子能谱和常规合成
摘要:
一系列的高度拥挤对称和不对称diphosphinomethanes - [R 2 PCH 2 PR' 2,重要配体在过渡金属化学和催化方面,即t Bu 2 PCH 2 P t Bu 2 (dtbpm,1),Cy 2 PCH 2 PCy 2 (dcpm,2),t Bu 2 PCH 2 PCy 2 (ctbpm,3),t Bu 2 PCH 2 P i Pr 2 (iptbpm,4)和t Bu 2 PCH 2 PPh 2 (ptbpm,5),已使用一般便捷的路线以高收率制备,详细说明请参见1。除4是无色液体外,这些化合物在室温下为结晶固体。它们的分子结构已经通过单晶X射线衍射以及更高的同系物1,t Bu 2 CH 2 CH 2 t Bu 2 (dtbpe,6)进行了测定。的氧化钛的固态结构1,吨卜2 P(O)CH 2 P(O)吨卜2 (7),和两个phospho阳离子衍生自1的质子化[ t Bu
立体拥挤的二膦甲烷配体:t Bu 2 PCH 2 P t Bu 2及其相关物种的分子结构,紫外光电子能谱和常规合成
摘要:
一系列的高度拥挤对称和不对称diphosphinomethanes - [R 2 PCH 2 PR' 2,重要配体在过渡金属化学和催化方面,即t Bu 2 PCH 2 P t Bu 2 (dtbpm,1),Cy 2 PCH 2 PCy 2 (dcpm,2),t Bu 2 PCH 2 PCy 2 (ctbpm,3),t Bu 2 PCH 2 P i Pr 2 (iptbpm,4)和t Bu 2 PCH 2 PPh 2 (ptbpm,5),已使用一般便捷的路线以高收率制备,详细说明请参见1。除4是无色液体外,这些化合物在室温下为结晶固体。它们的分子结构已经通过单晶X射线衍射以及更高的同系物1,t Bu 2 CH 2 CH 2 t Bu 2 (dtbpe,6)进行了测定。的氧化钛的固态结构1,吨卜2 P(O)CH 2 P(O)吨卜2 (7),和两个phospho阳离子衍生自1的质子化[ t Bu
Intermolecular Hydroacylation: High Activity Rhodium Catalysts Containing Small-Bite-Angle Diphosphine Ligands
作者:Adrian B. Chaplin、Joel F. Hooper、Andrew S. Weller、Michael C. Willis
DOI:10.1021/ja211649a
日期:2012.3.14
rhodium complexes containing methylene bridged diphosphine ligands, viz. [Rh(C(6)H(5)F)(R(2)PCH(2)PR'(2))][BAr(F)(4)] (R, R' = (t)Bu or Cy; Ar(F) = C(6)H(3)-3,5-(CF(3))(2)), are shown to be practical and very efficient precatalysts for the intermolecularhydroacylation of a wide variety of unactivated alkenes and alkynes with β-S-substitutedaldehydes. Intermediate acyl hydride complexes [Rh((t)Bu(2)PCH
The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.
这项发明涉及金属配合物以及包括这些金属配合物的电子设备,特别是有机电致发光器件。
A Comprehensive Mechanistic Picture of the Isomerizing Alkoxycarbonylation of Plant Oils
olefin substrates, but virtually no effect of the doublebond position within the substrate. Compared to higher olefins, ethylene carbonylation under identical conditions is much faster, likely due not just to the occurrence of reactive linear acyls exclusively but also to an intrinsically favorable insertion reactivity of the olefin. The alcoholysis reaction is slowed down for higher alcohols, evidenced
η<sup>2</sup>-Coordination and C−H Activation of Electron-Poor Arenes
作者:Carl N. Iverson、Rene J. Lachicotte、Christian Müller、William D. Jones
DOI:10.1021/om020459x
日期:2002.11.1
at lower temperatures. Thermolysis or photolysis of the arene complexes results in C−Hactivation and the formation of platinum(II) aryl hydride complexes. The products observed depend on whether the reaction is thermal or photolytic. Reaction with 4,4‘-bis(trifluoromethyl)biphenyl yields two C−Hactivated products directly. Oxidativeaddition occurs at the 2 and 3 positions of the biphenyl in a 5:1
[EN] AROMATIC MONOMER-AND CONJUGATED POLYMER-METAL COMPLEXES<br/>[FR] COMPLEXES METALLIQUES A BASE DE MONOMERE AROMATIQUE ET DE POLYMERE CONJUGUE
申请人:DOW GLOBAL TECHNOLOGIES INC
公开号:WO2005016945A1
公开(公告)日:2005-02-24
A halogenated aromatic monomer-metal complex useful for preparing a polymer for electronic devices such as a light-emitting diode (LED) device is described. The aromatic monomer-metal complex is designed to include a linking group that disrupts conjugation, thereby advantageously reducing or preventing electron delocalization between the aromatic monomer fragment and the metal complex fragment. Disruption of conjugation is often desirable to preserve the phosphorescent emission properties of the metal complex in a polymer formed from the aromatic monomer-metal complex. The resultant conjugated electroluminescent polymer has precisely controlled metal complexation and electronic properties that are substantially or completely independent of those of the polymer backbone.