1,2-bis(thiomethyl)tetramethyldisilane | 54580-28-8

• 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: 1,2-bis(thiomethyl)tetramethyldisilane
• 英文别名: 1,1,2,2-Tetramethyl-1,2-bis-(methylthio)-disilan；1,1,2,2-Tetramethyl-1,2-bis(methylsulfanyl)disilane；[dimethyl(methylsulfanyl)silyl]-dimethyl-methylsulfanylsilane
• CAS: 54580-28-8
• 化学式: C₆H₁₈S₂Si₂
• 分子量: 210.512
• InChiKey: YXZZSTPCAQQBMJ-UHFFFAOYSA-N

物化性质

• 沸点：
  203.4±23.0 °C(Predicted)
• 密度：
  0.927±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  50.6
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,2-bis(thiomethyl)tetramethyldisilane 在 十二/十四烷基二甲基氧化胺 作用下， 以 甲苯 为溶剂， 反应 2.0h， 以29%的产率得到1,3-bis(methylthiomethyl)-1,1,3,3-tetramethyldisiloxane
  参考文献：
  名称：

  Extreme Conductance Suppression in Molecular Siloxanes

  摘要：

  Single-molecule conductance studies have traditionally focused on creating highly conducting molecular wires. However, progress in nanoscale electronics demands insulators just as it needs conductors. Here we describe the single-molecule length-dependent conductance properties of the classic silicon dioxide insulator. We synthesize molecular wires consisting of Si-O repeat units and measure their conductance through the scanning tunneling microscope-based break-junction method. These molecules yield conductance lower than alkanes of the same length and the largest length dependent conductance decay of any molecular systems measured to date. We calculate single-molecule junction transmission and the complex band structure of the infinite 1D material for siloxane, in comparison with silane and alkane, and show that the large conductance decay is intrinsic to the nature of the Si-O bond. This work highlights the potential for siloxanes to function as molecular insulators in electronics.

  DOI：

  10.1021/jacs.7b05599
• 作为产物：
  描述：

  1,2-二氯四甲基二硅烷 、 lead bis(methylthiolate) 生成 1,2-bis(thiomethyl)tetramethyldisilane
  参考文献：
  名称：

  Darstellung und Eigenschaften von Disilanderivaten des Typs Si2me4X2

  摘要：

  DOI：

  10.1007/bf00912965

文献信息

• Extreme Conductance Suppression in Molecular Siloxanes
  作者：Haixing Li、Marc H. Garner、Timothy A. Su、Anders Jensen、Michael S. Inkpen、Michael L. Steigerwald、Latha Venkataraman、Gemma C. Solomon、Colin Nuckolls

  DOI：10.1021/jacs.7b05599

  日期：2017.8.2

  Single-molecule conductance studies have traditionally focused on creating highly conducting molecular wires. However, progress in nanoscale electronics demands insulators just as it needs conductors. Here we describe the single-molecule length-dependent conductance properties of the classic silicon dioxide insulator. We synthesize molecular wires consisting of Si-O repeat units and measure their conductance through the scanning tunneling microscope-based break-junction method. These molecules yield conductance lower than alkanes of the same length and the largest length dependent conductance decay of any molecular systems measured to date. We calculate single-molecule junction transmission and the complex band structure of the infinite 1D material for siloxane, in comparison with silane and alkane, and show that the large conductance decay is intrinsic to the nature of the Si-O bond. This work highlights the potential for siloxanes to function as molecular insulators in electronics.
• Darstellung und Eigenschaften von Disilanderivaten des Typs Si2me4X2
  作者：E. Hengge、S. Waldhör

  DOI：10.1007/bf00912965

  日期：1974.7