{WO(O2)2(bpy)} | 23273-38-3

• 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: {WO(O2)2(bpy)}
• 英文别名: [WO(O2)2(2,2′-bipyridine)]；[WO(O2)2(2,2′-bpy)]
• CAS: 23273-38-3
• 化学式: C₁₀H₈N₂O₅W
• 分子量: 420.034
• InChiKey: SINPXHVPRFDNTM-UHFFFAOYSA-N

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：

  钨 在 H₂O₂ 作用下， 以 neat (no solvent) 为溶剂， 生成 {WO(O2)2(bpy)}
  参考文献：
  名称：

  过渡金属过氧配合物的首次电合成。钼和钨杂配体过氧配合物的合成，表征和反应活性

  摘要：

  摘要钼和钨的分子过氧化物配合物，即。[MO（O2）2L]（M = Mo或W； L = 2,2'-联吡啶，1,10-菲咯啉或2,2'-联吡啶-N，N'-二氧化物），在过氧化氢存在下然后用相应的杂配体沉淀。这些配合物也可以通过将金属粉末溶解在过氧化氢中来制备。它们已通过元素分析和振动光谱进行了表征。该配合物将三苯膦和三苯ar氧化为三氧化二膦和三苯ar氧化物。

  DOI：

  10.1016/s0277-5387(00)87053-9
• 作为试剂：
  描述：

  苯乙烯 在 {WO(O2)2(bpy)} 、 双氧水 作用下， 以 乙腈 为溶剂， 反应 24.0h， 生成 4-phenyl-3-buten-1,2-diol 、 氧化苯乙烯 、 苯乙醛 、 苯甲醛 、 2-羟基苯乙酮 、 苯乙酮 、 苯甲酸
  参考文献：
  名称：

  Crystal Structure and Catalytic Behavior in Olefin Epoxidation of a One-Dimensional Tungsten Oxide/Bipyridine Hybrid

  摘要：

  The tungsten oxide/2,2'-bipyridine hybrid material [WO3(2,2'-bpy)]center dot nH(2)O (n = 1-2) (1) has been prepared in near quantitative yield by the reaction of H2WO4, 2,2'-bpy, and H2O in the mole ratio of ca. 1:2:700 at 160 degrees C for 98 h in a rotating Teflon-lined digestion bomb. The solid-state structure of 1 was solved and refined through Rietveld analysis of high-resolution synchrotron X-ray diffraction data collected for the microcrystalline powder. The material, crystallizing in the orthorhombic space group Iba2, is composed of a one-dimensional organic-inorganic hybrid polymer, (1)(infinity)[WO3(2,2'-bpy)], topologically identical to that found in the previously reported anhydrous phases [MO3(2,2'-bpy)] (M = Mo, W). While in the latter the N,N'-chelated 2,2'-bpy ligands of adjacent corner-shared {MO4N2} octahedra are positioned on the same side of the 1D chain, in 1 the 2,2'-bpy ligands alternate above and below the chain. The catalytic behavior of compound 1 for the epoxidation of cis-cyclooctene was compared with that for several other tungsten- or molybdenum-based (pre)catalysts, including the hybrid polymer [MoO3(2,2'-bpy)]. While the latter exhibits superior performance when tert-butyl hydropercndde (TBHP) is used as the oxidant, compound 1 is superior when aqueous hydrogen peroxide is used, allowing near-quantitative conversion of the olefin to the epoxide. With H2O2, compounds 1 and [MoO3(2,2'-bpy)] act as sources of soluble active species, namely, the oxodiperoxo complex [MO(O-2)(2)(2,2'-bpy)], which is formed in situ. Compounds 1 and [WO(O-2)(2)(2,2'-bpy)] (2) were further tested in the epoxidation of cydododecene, trans-2-octene, 1-octene, (R)-limonene, and styrene. The structure of 2 was determined by single-crystal X-ray diffraction and found to be isotypical with the molybdenum analogue.

  DOI：

  10.1021/acs.inorgchem.5b00928

文献信息

• Formation, Reactivity, and Catalytic Behavior of a Keggin Polyoxometalate/Bipyridine Hybrid in the Epoxidation of Cyclooctene with H₂O₂
  作者：Gabriel Hidalgo、Gabriella Barozzino-Consiglio、Koen Robeyns、Michel Devillers、Eric M. Gaigneaux

  DOI：10.1021/acs.inorgchem.3c00467

  日期：2023.6.5

  liquid-phase cyclooctene epoxidation with H2O2. Precisely, it unveils the nature of the relevant active species derived from the hybrid based on Keggin polyoxometalate (POM) and bipyridines (bpy) of formula (2,2′-Hbpy)3[PW12O40] (1). Whereas (i) it is generally accepted that the catalytic oxidation of organic substrates by H2O2 involving Keggin HPAs proceeds via an oxygen transfer route from a peroxo intermediate

  本研究进一步探讨了基于多金属氧酸盐的杂化化合物作为 H 2 O 2液相环辛烯环氧化催化剂的行为。准确地说，它揭示了衍生自基于 Keggin 多金属氧酸盐 (POM) 和式 (2,2'-Hbpy) 3 [PW 12 O 40 ] ( 1 ) 的联吡啶 (bpy) 的杂化物的相关活性物质的性质。而 (i) 人们普遍认为，涉及 Keggin HPA 的H 2 O 2对有机底物的催化氧化是通过来自过氧中间体的氧转移途径进行的，并且 (ii) 催化活性过氧物种通常被假定为聚过氧钨酸盐 采购订单4 [W(O)(O 2 ) 2 ] 4 } 3–络合物 (PW 4 )，我们表明所研究的环氧化反应似乎比通常报道的更为复杂。在催化环氧化过程中，1经历了部分转化为两种氧化物质2和3。化合物3对应于式 [WO(O 2 ) 2 (2,2'-bpy)] 的 2,2'-联吡啶氧二过氧钨酸盐，被证明是负责环辛烯选择性环氧化的主要物质，因为2（其中
• Bhattacharyya, Ramgopal; Biswas, Sudeb; Armstrong, Jeffrey, Inorganic Chemistry, 1989, vol. 28, # 23, p. 4297 - 4300
  作者：Bhattacharyya, Ramgopal、Biswas, Sudeb、Armstrong, Jeffrey、Holt, Elizabeth M.

  DOI：——

  日期：——