| 286854-81-7

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• CAS: 286854-81-7
• 化学式: C₂₀H₃₈CuO₄Si₂
• 分子量: 462.236
• InChiKey: SUWLOQJQGPWEPA-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：

  copper(II) choride dihydrate 、 2,2,7-trimethyl-2-silaoctane-3,5-dione 在 NaOH 作用下， 以 乙醇 为溶剂， 生成
  参考文献：
  名称：

  Facile synthesis of a novel class of organometalloid-containing ligands, the sila-β-diketones: preparation and physical and structural characterization of the copper(II) complexes, Cu[R′C(O)CHC(O)SiR3]2

  摘要：

  The substitution of a carbon atom by silicon provides an attractive, novel approach to modification of the thermal stability and volatility of metal-organic chemical vapor deposition precursors supported by beta-diketonate ancillary ligands. The low temperature reaction of the lithium enolates of acetyltrialkylsilanes with acyl chlorides affords the sila-beta-diketones, R'C(O)CH2C(O)SiR3 (R' = Me, Et, n-Pr, i-Pr, n-Bu, i-Bu, s-Bu, t-Bu; SiR3 = SiMe3, SiEt3, SiMe2(t-Bu), SiMe2(t-hexyl), Si(i-Pr)A in good yields. Multinuclear NMR studies suggest that the sila-beta-diketones exist as the enolic tautomer with a vinylsilane isomeric structure. Homoleptic Cu(II) sila-beta-diketonate complexes were prepared in a first pass study to evaluate how precursor performance is affected by modulation of the peripheral substituents in the ligands. Thermal analyses, (TGA, DSC) show that the silylated Cu(II) precursors (SiR3 = SiMe3; R' = t-Bu or i-Bu) have greater volatility than the corresponding carbon analogues. Some of the new Cu(11) complexes exist as liquids or low melting solids, which are preferred states for industrial deposition processes. X-ray diffraction studies of selected copper complexes showed them to have typical, square planar geometry; calculations of molecular volumes suggest that packing in the solid-state is less efficient for the silicon-containing complexes than for the non-silylated analogues. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(03)00393-0