1,5-diphenyldecamethylpentasilane | 10536-53-5

• 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: 1,5-diphenyldecamethylpentasilane
• 英文别名: Decamethyl-1,5-diphenyl-pentasilan；1.5-Diphenyl-decamethyl-pentasilan；Pentasilane, 1,1,2,2,3,3,4,4,5,5-decamethyl-1,5-diphenyl-；bis[[dimethyl(phenyl)silyl]-dimethylsilyl]-dimethylsilane
• CAS: 10536-53-5
• 化学式: C₂₂H₄₀Si₅
• 分子量: 444.987
• InChiKey: VFOIUXHYVDHQBP-UHFFFAOYSA-N

物化性质

• 沸点：
  190 °C(Press: 0.001 Torr)
• 密度：
  0.90±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.66
• 重原子数：
  27
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1,5-diphenyldecamethylpentasilane 在 盐酸 、 aluminum (III) chloride 作用下， 以 苯 为溶剂， 反应 1.0h， 以63%的产率得到1,5-Dichlordecamethylpentasilan
  参考文献：
  名称：

  导电分子硅

  摘要：

  体硅是信息技术的基石，它由看似简单的 Si-Si σ 键电子结构组成。金刚石具有与硅相同的晶格结构，但这两种材料具有截然不同的电子特性。在这里，我们报告了一类分子低聚硅烷的具体合成和电学表征，这些分子含有强相互作用的 Si-Si σ 键，这是大块半导体的基本成分。我们使用基于扫描隧道显微镜的断裂连接技术来比较这些低聚硅烷与烷烃的单分子电导率。我们发现分子电导随着链长的增加呈指数下降，衰减常数 β = 0.27 ± 0.01 Å(-1)，与 C=C π 键的共轭链相当。

  DOI：

  10.1021/ja211677q
• 作为产物：
  描述：

  二甲基-二(三甲基硅烷基)硅烷 在 三甲基氯硅烷 、 三氯化铝 、 lithium 作用下， 反应 14.0h， 生成 1,5-diphenyldecamethylpentasilane
  参考文献：
  名称：

  �ber ?,?-�bergangsmetallsubstituierte Oligosilane

  摘要：

  Methyloligosilanes with n = 3, 4, 5 and 6 with dicarbonyl-cyclopentadienyl-iron- and tricarbonyl-triphenylphosphane-cobalt-groups in terminal positions were synthesized for the first time and characterized by NMR, IR, and MS. The NMR spectra were discussed in detail.

  DOI：

  10.1007/bf00819520

文献信息

• Hydrogen‐Bridged Oligosilanylsilyl Mono‐ and Oligosilanylsilyl Dications
  作者：Jelte P. Nimoth、Thomas Müller

  DOI：10.1002/chem.202104318

  日期：2022.2.16

  The presence of multiple Si−H functionalities in one molecule is used to generate at low temperatures oligosilane-based mono- and dications that are stabilized by intramolecular 3c2e Si−H−Si bridges. For the oligosilanylsilyl monocation, a rapid intramolecular Si−H group exchange is monitored by NMR spectroscopy at low temperatures. This dynamic process is not observed for the corresponding dication

  一个分子中存在多个Si-H 官能团可用于在低温下生成基于低聚硅烷的单阳离子和双阳离子，这些单阳离子和双阳离子通过分子内 3c2e Si-H-Si 桥键稳定。对于低聚硅烷基单阳离子，在低温下通过 NMR 光谱监测快速的分子内 Si-H 基团交换。对于相应的词典，没有观察到这种动态过程。根据获得的 NMR 数据，两个阳离子 Si-H-Si 桥都被三硅烷基骨架电子隔离。
• Dearylation of α,ω-diphenylpermethylated oligosilanes with triflic acid
  作者：Karen E. Ruehl、Krzysztof Matyjaszewski

  DOI：10.1016/0022-328x(91)83020-5

  日期：1991.6

  The relative rates of displacement of phenyl groups for a series of α,ω-diphenylpermethylated oligosilanes with the formula Ph(SiMe2)nPh (n = 2−5) were studied. Triflic acid was utilized in the displacement reactions which occur as a two-step process with protonation at the ipso-carbon atom as the rate limiting step. The results showed the displacement of the firs phenyl group is more facile than the

  研究了一系列具有式Ph（SiMe 2）n Ph（n = 2-5）的α，ω-二苯基全甲基化低聚硅烷的苯基取代率。三氟甲磺酸被利用，其中在发生作为两个步骤的过程与质子化的置换反应本位-碳原子作为限速步骤。结果表明，第一苯基的取代比第二基更容易。发现乙硅烷的反应性差异最大。分析了各种低聚物之间的竞争性置换反应，以确定低聚硅烷的链长对末端苯基相对活性的影响。对于较长链的低聚物，第一和第二苯基取代反应都比较短的类似物更快。的13的低聚的C NMR光谱表明在最高选举密度本位与乙硅烷中最低的反应性相反。这可以解释为，随着链长的增加，过渡态中正电荷的稳定性增强。因此，低聚硅烷的反应性受过渡态而不是基态的结构支配。
• Palladium-catalyzed insertion of isocyanides into the silicon-silicon linkages of oligosilanes
  作者：Yoshihiko Ito、Michinori Suginome、Takaharu Matsuura、Masahiro Murakami

  DOI：10.1021/ja00023a043

  日期：1991.11

  Full details of a study on the reactions of oligosilanes with isocyanides promoted by a palladium catalyst are described. Heating a mixture of oligosilanes and excess 2,6-disubstituted aryl isocyanide in the presence of palladium(II) acetate led to the complete insertion of isocyanide into all silicon-silicon linkages, giving oligo(silylimine) derivatives. The oligo(silylimine)s have been isolated and characterized so far in the complete insertion reaction with oligosilanes up to a hexasilane. Use of the limiting amount of isocyanide permitted insertion of isocyanide into predominantly the terminal silicon-silicon linkages. The mode of the insertion reaction depends on the substituent at the silicon, e.g., tetrasilanes with phenyl groups on the internal silicon atoms favorably underwent the insertion reaction at the terminal silicon-silicon linkages, resulting in the partial insertion. The bulkiness of the ortho substituents on the aromatic isocyanide was also found to have much influence on the insertion; hence, 2,6-diisopropylphenyl isocyanide favored the partial insertion. New skeletal rearrangement of oligosilanes took place in a palladium-catalyzed reaction of substituted aryl isocyanide with tetra- and hexasilanes, forming 3,3-bis(silyl)-l-aza-2, 4-disilacyclobutane derivatives. The rearrangement, which is unique and intriguing in that the product is properly reconstituted from four fragments of the tetrasilane and two fragments of the isocyanide, was promoted in the copresence of a tert-alkyl isocyanide.
• σ-Bond electron delocalization of branched oligogermanes and germanium containing oligosilanes
  作者：Johann Hlina、Rainer Zitz、Harald Wagner、Filippo Stella、Judith Baumgartner、Christoph Marschner

  DOI：10.1016/j.ica.2014.07.005

  日期：2014.10

  In order to evaluate the influence of germanium atoms in oligo-and polysilanes, a number of oligosilane compounds were prepared where two or more silicon atoms were replaced by germanium. While it can be expected that the structural features of thus altered molecules do not change much, the more interesting question is, whether this modification would have a profound influence on the electronic structure, in particular on the property of sigma-bond electron delocalization.The UV-spectroscopic comparison of the oligosilanes with germanium enriched oligosilanes and also with oligogermanes showed a remarkable uniform picture. The expected bathochromic shift for oligogermanes and Ge-enriched oligosilanes was observed but its extent was very small. For the low energy absorption band the bathochromic shift from a hexasilane chain (256 nm) to a hexagermane chain with identical substituent patterns (259 nm) amounts to a mere 3 nm. (C) 2014 The Authors. Published by Elsevier B. V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).
• RUEHL, KAREN E.;MATYJASZEWSKI, KRZYSZTOF, J. ORGANOMET. CHEM. , 410,(1991) N, C. 1-12
  作者：RUEHL, KAREN E.、MATYJASZEWSKI, KRZYSZTOF

  DOI：——

  日期：——