Hexaisopropyl-digerman | 6620-89-9

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: Hexaisopropyl-digerman
• CAS: 6620-89-9
• 化学式: C₁₈H₄₂Ge₂
• 分子量: 403.711
• InChiKey: IWZGASPRPRAUBI-UHFFFAOYSA-N

物化性质

• 沸点：
  344.4±25.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.42
• 重原子数：
  20.0
• 可旋转键数：
  7.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为产物：
  描述：

  ethoxy-tri(propan-2-yl)germane 以 乙醚 、 正己烷 、 乙腈 、 苯 为溶剂， 反应 19.5h， 生成 Hexaisopropyl-digerman
  参考文献：
  名称：

  A Series of Isopropyl-Substituted Oligogermanes Prⁱ₃Ge(GePh₂)_nGePrⁱ₃ (n = 0–3) Featuring a Luminescent and Dichroic Pentagermane Prⁱ₃Ge(GePh₂)₃GePrⁱ₃

  摘要：

  The series of oligogermanes (Pr3Ge)-Ge-i(GePh2)(n)GePr3i (n = 0, 2; n = 1, 3; n = 2, 4; n = 3, 5) were prepared by the hydrogermolysis reaction. All four species were characterized by NMR (H-1 and C-13) and UV/visible spectroscopy as well by cyclic voltammetry and differential pulse voltammetry. The oligogermanes exhibited a successive red shift in their absorbance maxima as the length of the Ge-Ge chain was increased, and these molecules also became easier to oxidize as the chain length was increased. The X-ray crystal structures of 4 and 5 as well as the trigermane HPh2GeGePh2GePh2H (6) were determined. The pentagermane 5 was shown to be dichroic in the solid state due to the packing of the individual molecules in a columnar fashion in the crystal. Pentagermane 5 is also luminescent in solution, exhibiting an emission maximum at 380 nm. The physical properties of 5, like the hexagermane (Pr3Ge)-Ge-i(GePh)(4)GePr3i, mimic the properties of the larger polygermane systems.

  DOI：

  10.1021/acs.organomet.6b00596

文献信息

• Development of novel and efficient synthesis of group 14 element (Ge and Sn) catenates by use of samarium (II) diiodide
  作者：Takushi Azemi、Yasuo Yokoyama、Kunio Mochida

  DOI：10.1016/j.jorganchem.2004.12.032

  日期：2005.3

  Group 14 element catenates such as di-, tri-, poly-germanes, and polystannanes are efficiently synthesized by use of the one-electron reducing agent Sml(2) under mild homogeneous conditions in good yields. (c) 2005 Elsevier B.V. All rights reserved.