(2,2'-bipyridine)bis(trifluoroacetato)palladium(II) | 157378-12-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: (2,2'-bipyridine)bis(trifluoroacetato)palladium(II)
• 英文别名: 2,2'-bipyridinebis(trifluoroacetato)palladium(II)；(2,2'-bipyridine)Pd(trifluoroacetate)2；[Pd(CF3COO)2(bipy)]
• CAS: 157378-12-6
• 化学式: C₁₄H₈F₆N₂O₄Pd
• 分子量: 488.639
• InChiKey: IPUVASTVWRFFHA-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  2,2'-联吡啶 以 氘代二甲亚砜 、 丙酮 为溶剂， 生成 (2,2'-bipyridine)bis(trifluoroacetato)palladium(II)
  参考文献：
  名称：

  具有氮供体螯合配体的双螯合钯（II）配合物是用于CO /苯乙烯共聚反应的高效催化剂前体

  摘要：

  一系列双键螯合钯（II）配合物[Pd（NN）2 ] [X] 2（NN = 2,2'-联吡啶（bipy），1,10-菲咯啉（phen）及其取代的衍生物；X = PF 6 -，BF 4 - ，光学传递函数- ，在职培训计划- ）已被合成并在固态和溶液中完全特征两者。合成过程涉及Pd（MeCOO）2之间的简单一锅反应和[（NN）H] [X]。这些化合物是用于CO /苯乙烯共聚的非常活跃的预催化剂，可产生完美交替的聚酮。该系列某些配合物的晶体结构提供了证据，表明从理想的方形平面几何结构向扭曲构象发生了扭曲。在DMSO溶液中，两个氮供体配体之一参与解离平衡，生成具有两个顺式的单螯合物配位点可用于共聚催化过程。催化活性物质在2,2,2-三氟乙醇中非常稳定，在至少48小时的反应中，其活性均未改变，且未明显分解为钯金属。将1,4-苯醌（BQ）添加到催化体系中对产率尤其是对聚酮的分子量有很大的影响。合成和表

  DOI：

  10.1021/om9703954

文献信息

• Synthesis and characterization of monochelated carboxylatopalladium(II) complexes with nitrogen-donor chelating ligands. Crystal structures of diacetato(1,10-phenanthroline)- and diacetato(2,9-dimethyl-1,10-phenanthroline)-palladium(II)
  作者：Barbara Milani、Enzo Alessio、Giovanni Mestroni、Anna Sommazzi、Fabio Garbassi、Ennio Zangrando、Nevenka Bresciani-Pahor、Lucio Randaccio

  DOI：10.1039/dt9940001903

  日期：——

  Two series of monochelated carboxylatopalladium(II) complexes of general formula [Pd(L-L)(MeCO2)2] and [Pd(L-L)(CF3CO2)2] [L-L = 1,10-phenanthroline (phen), 2,2'-bipyridine and their substituted derivatives) have been prepared and characterized. The chemical behaviour of the complexes in solution has been studied in different solvents mainly by means of H-1 NMR experiments. These showed that, unlike the acetato complexes, the trifluoroacetato derivatives undergo partial dissociation of the anionic ligand in Me2SO solution at room temperature. A similar behaviour was also observed for the acetato complexes in CD3OD. The signals of the H-2, H-9 protons in the phenanthroline series, and those of H-6, H-6 in the bipyridine one, are excellent probes for the evaluation of the environment of the palladium atom. The crystal structures of [Pd(phen)(MeCO2)2], [Pd(2,9-dmphen)(MeCO2)2].0.40CH2Cl2 and [Pd(2,9-dmphen)(MeCO2)2].0.25CHCl3 (2,9-dmphen=2,9-dimethyl-1,10-phenanthroline) have been determined. The co-ordination geometry around palladium is square planar in all the structures, but significant deviations from the idealized geometry occur in the last two in order to relieve the interligand contacts. These monochelated carboxylatopalladium(II) complexes are active catalysts in carbon monoxide-olefin copolymerization. Some preliminary results on their catalytic activity are also reported.
• Nanostructured Pd/C catalysts prepared by grafting of model carboxylate complexes onto functionalized carbon
  作者：S HERMANS、C DIVERCHY、O DEMOULIN、V DUBOIS、E GAIGNEAUX、M DEVILLERS

  DOI：10.1016/j.jcat.2006.07.019

  日期：2006.10.25

  Pd(5 wt%)/C catalysts were prepared by grafting carboxylate precursors onto functionalized carbon. The functionalization of the support was carried out with HNO3 or H2O2, and the number and nature of oxygenated functions introduced were determined by a combination of simplified Boehm's titration, XPS, BET, and DRIFTS. These functions were then used as anchors for model Pd precursors through covalent bonding. The underlying ligand-exchange mechanism was elucidated through detailed XPS studies. The thermal activation of the grafted materials was followed by in situ mass spectrometry, which demonstrated that it consisted of ligand losses. The activated samples were characterized by SEM, XRD, CO chemisorption, and XPS and used in the reduction of 2-methyl-2-nitropropane (MNP) into t-butylamine (TBA). The catalytic activity was shown to be correlated),with the initial carbon acidity and the Pd dispersion. (c) 2006 Elsevier Inc. All fights reserved.