di(trichloromethylsilyl) 2-allylmalonate | 681819-05-6

• 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
• 英文名称: di(trichloromethylsilyl) 2-allylmalonate
• 英文别名: bis(trimethylsilyl) allylmalonate；Bis(trimethylsilyl) 2-prop-2-enylpropanedioate
• CAS: 681819-05-6
• 化学式: C₁₂H₂₄O₄Si₂
• 分子量: 288.491
• InChiKey: RXZJGJOSYZAXRD-UHFFFAOYSA-N

物化性质

• 沸点：
  249.6±20.0 °C(Predicted)
• 密度：
  0.959±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.93
• 重原子数：
  18
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  di(trichloromethylsilyl) 2-allylmalonate 在 platinum-divinyltetramethyldisiloxane lithium tetramethanolatoborate 作用下， 以 四氢呋喃 、 乙腈 为溶剂， 反应 96.0h， 生成
  参考文献：
  名称：

  Synthesis and Characterization of Network Type Single Ion Conductors

  摘要：

  New single ion conductors were synthesized by grafting the allyl group-containing lithium salt, lithium bis(allylmalonato)borate (LiBAMB), onto allyl group-containing comb-branch polyacrylate or polymethacrylate ethers by means of hydrosilylation. The highest ambient temperature conductivity of 3.5 x 10(-7) S cm(-1) was obtained for a polyacrylate ether-based single ion conductor containing eight EO units in the side chain and five EO units in the cross-linking side chain, to which the anion was fixed with a salt concentration of EO/Li = 20. For polyacrylate ether-based single ion conductors, an increase of chain length in both side chains and cross-linking anion chains favors an increase of ionic conductivity. The addition of 50 wt % EC/DMC (1/1, wt/wt) increased the ionic conductivity by more than 2 orders of magnitude due to both the increase in ionic mobility from the liquid phase and the increase in the concentration of free ions from the high dielectric constant of the solvent. The preliminary Li/Li cycling profiles of dry polyacrylate- and polymethacrylate ether-based single ion conductors are encouraging as almost no concentration polarization or relaxation was observed. The observed increase in cell potential with cycling is apparently due to an increase in the interfacial impedance associated with the SEI layer, and the cell failure is accompanied by the decomposition of the ester bond of the polyacrylate backbone.

  DOI：

  10.1021/ma035690g
• 作为产物：
  描述：

  烯丙基丙二酸二乙酯 在 氢氧化钾 作用下， 以 水 、 1,2-二氯乙烷 为溶剂， 反应 96.0h， 生成 di(trichloromethylsilyl) 2-allylmalonate
  参考文献：
  名称：

  Synthesis and Characterization of Network Type Single Ion Conductors

  摘要：

  New single ion conductors were synthesized by grafting the allyl group-containing lithium salt, lithium bis(allylmalonato)borate (LiBAMB), onto allyl group-containing comb-branch polyacrylate or polymethacrylate ethers by means of hydrosilylation. The highest ambient temperature conductivity of 3.5 x 10(-7) S cm(-1) was obtained for a polyacrylate ether-based single ion conductor containing eight EO units in the side chain and five EO units in the cross-linking side chain, to which the anion was fixed with a salt concentration of EO/Li = 20. For polyacrylate ether-based single ion conductors, an increase of chain length in both side chains and cross-linking anion chains favors an increase of ionic conductivity. The addition of 50 wt % EC/DMC (1/1, wt/wt) increased the ionic conductivity by more than 2 orders of magnitude due to both the increase in ionic mobility from the liquid phase and the increase in the concentration of free ions from the high dielectric constant of the solvent. The preliminary Li/Li cycling profiles of dry polyacrylate- and polymethacrylate ether-based single ion conductors are encouraging as almost no concentration polarization or relaxation was observed. The observed increase in cell potential with cycling is apparently due to an increase in the interfacial impedance associated with the SEI layer, and the cell failure is accompanied by the decomposition of the ester bond of the polyacrylate backbone.

  DOI：

  10.1021/ma035690g

文献信息

• Spherosilicates with peripheral malonic acid and vinyl end groups
  作者：Zhongliang Shen、Jongsik Kim、Jingmei Shen、Christopher M. Downing、Sungsik Lee、Harold H. Kung、Mayfair C. Kung

  DOI：10.1039/c3cc40533h

  日期：——

  Two novel spherosilicates comprised of an octahedral Si8O12 core, [Si8O12]-(OSiMe2CH2CH2CH2CH(COOH)2)8 and [Si8O12]-(OSiMe2CH2CH2CH2CH(COOSi(CHCH2)3)2)8, were synthesized from [Si8O12]-(OSiMe2H)8. These new structures have high densities of peripheral functional groups, and the second structure also possesses silyl ester bonds that are easily cleavable under mild conditions. These functionalities enable these structures to be modified further and to have many potential applications. We demonstrated one by cross-linking the vinyl-terminated spherosilicate to form nanospheres with a narrow size distribution and utilizing the hydrophilic interior to accommodate a Pd salt in a toluene solution.

  合成了两种新型的球硅酸盐，它们由一个八面体的Si8O12核心组成，分别为[Si8O12]-(OSiMe2CH2CH2CH2CH(COOH)2)8和[Si8O12]-(OSiMe2CH2CH2CH2CH(COOSi(CHCH2)3)2)8。这些新结构具有高密度的外围功能基团，第二种结构还具有在温和条件下易于断裂的硅酯键。这些功能使得这些结构能够进一步改性，并具有许多潜在的应用。我们通过交联乙烯基终端的球硅酸盐，形成了具有窄尺寸分布的纳米球，并利用其亲水的内部在甲苯溶液中包容Pd盐，从而展示了一种应用。