| 172225-95-5

• CAS: 172225-95-5
• 化学式: C₂₄H₃₁NiO₆PSi
• 分子量: 533.256
• InChiKey: MXHURPUQYXBSMI-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：

  二苯基[3-(三乙氧基甲硅烷基)丙基]膦 、 tetracarbonyl nickel 以 not given 为溶剂， 以99%的产率得到
  参考文献：
  名称：

  Immobilization of Carbonylnickel Complexes:  A Solid-State NMR Study

  摘要：

  Silica is commonly modified with bifunctional phosphines like PPh(2)CH(2)CH(2)Si(OEt)(3) prior to immobilization of catalysts. Here, besides PPh(2)(CH2)(3)Si(OEt)(3), ligands that are more stable toward oxidation, namely PPh(2)(C6H4)Si(OEt)(3), PPh(2)(C6H4)SiMe(2)(OEt), and PPh(2)(CH2)(4)OH, are applied. The di- and tricarbonylnickel complexes of these ligands are synthesized, characterized by Ni-61, (31)p, C-13, and H-1 NMR and IR spectroscopy, and immobilized on silica. Alternatively, the corresponding phosphine-modified silicas are treated with Ni(CO)(4). The obtained materials are investigated by P-31 and C-13 solid-state NMR spectroscopy. Di- and tricarbonylnickel species can be distinguished by their different chemical shift anisotropies and also by their IR data. While the first route allows immobilization of both di- and tricarbonylnickel complexes, reaction of surface-bound phosphines with Ni(CO)(4) gives the tricarbonyl species exclusively. Among the different ligands, PPh(2)(CH2)(4)OH has optimal qualities: It gives high surface coverages without oxidation or cross-linking, and therefore narrow NMR lines, and it allows C-13 CP/MAS NMR spectroscopy.

  DOI：

  10.1021/ic950756c