MoO2(8-hydroxyquinolinate)2 | 17856-49-4

• 英文名称: MoO2(8-hydroxyquinolinate)2
• CAS: 17856-49-4；36545-20-7
• 化学式: C₁₈H₁₃MoN₂O₄
• 分子量: 417.252
• InChiKey: FHAYFPGTIBMNIN-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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反应信息

• 作为产物：
  描述：

  8-羟基喹啉 、 {MoO2Cl2(dmf)2} 以 氯仿 为溶剂， 反应 24.0h， 生成 MoO2(8-hydroxyquinolinate)2
  参考文献：
  名称：

  Covalent heterogenization of discrete bis(8-quinolinolato)dioxomolybdenum(VI) and dioxotungsten(VI) complexes by a metal-template/metal-exchange method: Cyclooctene epoxidation catalysts with enhanced performances

  摘要：

  A metal-template/metal-exchange method was used to imprint covalently attached bis(8-quinolinolato)dioxomolybdenum(VI) and dioxotungsten(VI) complexes onto large surface-area, mesoporous SBA-15 silica to obtain discrete (MoO2T)-T-VI and (WO2T)-T-VI catalysts bearing different metal loadings, respectively. Homogeneous counterparts, (MoO2N)-N-VI and (WO2N)-N-VI, as well as randomly ligand-grafted heterogeneous analogues, MoO(2)(VI)G and WO(2)(VI)G, were also prepared for comparison. X-ray absorption fine structure (XAFS), pair distribution function (PDF) and UV-vis data demonstrate that (MoO2T)-T-VI and (WO2T)-T-VI adopt a more solution-like bis(8-quinolinol) coordination environment than MoO(2)(VI)G and WO(2)(VI)G, respectively. Correspondingly, the templated Mo-VI and W-VI catalysts show superior performances to their randomly grafted counterparts and neat analogues in the epoxidation of cyclooctene. It is found that the representative (MoO2T)-T-VI-10% catalyst can be recycled up to five times without significant loss of reactivity, and heterogeneity test confirms the high stability of (MoO2T)-T-VI-10% catalyst against leaching of active species into solution. The homogeneity of the discrete bis(8-quinolinol) metal spheres templated on SBA-15 should be responsible for the superior performances. (C) 2014 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2014.04.037