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1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10 | 19401-32-2

中文名称
——
中文别名
——
英文名称
1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10
英文别名
1.2-(CH2Si(CH3)2CH2)-1.2-C2B10H10;1,2-Me2Si(CH2)2-1,2-C2B1010
1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10化学式
CAS
19401-32-2
化学式
C6H20B10Si
mdl
——
分子量
228.42
InChiKey
JHQBTTXHBJSRFE-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

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

  • 作为反应物:
    描述:
    二溴硼烷甲硫醚络合物1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10sodium 作用下, 以 二氯甲烷甲苯 为溶剂, 以39%的产率得到1,2-Me2Si(CH2)2-1,2-C2B11H11
    参考文献:
    名称:
    C,C'-Linkage 在 Supercarboranes 的形成和稳定中的作用。碳原子分离13-顶点碳硼烷和14-顶点金属碳硼烷的合成与结构
    摘要:
    这项工作首次报告了使用直接和间接方法合成和结构表征碳原子相邻和碳原子分开的 13 顶点碳硼烷和 14 顶点金属碳硼烷,而没有 C,C'-连接。结果表明,C,C'-键对 13 顶点碳硼烷的热稳定性和动力学稳定性没有任何明显影响,并且 CAp 异构体在热力学上比 CAd 异构体更稳定。键的作用只是降低 nido-carborane 二价阴离子的还原能力,促进头化反应。CAp 13-顶点碳硼烷可以通过 [nido-7,9-R2-7,9-C2B10H10]Na2 与二卤硼烷试剂反应直接制备。然而,由于 CAp 氨基碳硼烷二价阴离子的非常强的还原能力,产率相当低。
    DOI:
    10.1021/ja067129e
  • 作为产物:
    参考文献:
    名称:
    A New Series of Organoboranes. III. Some Reactions of 1,2-Dicarbaclovododecaborane(12) and its Derivatives
    摘要:
    DOI:
    10.1021/ic50010a004
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文献信息

  • Untethered 4,1,2-MC2B10 supraicosahedral metallacarboranes, their C,C′-dimethyl 4,1,6-, 4,1,8- and 4,1,12-MC2B10 analogues, and DFT study of the (4,)1,2- to (4,)1,6-isomerisations of C2B11 carboranes and MC2B10 metallacarboranes
    作者:Amelia McAnaw、Maria Elena Lopez、Greig Scott、David Ellis、David McKay、Georgina M. Rosair、Alan J. Welch
    DOI:10.1039/c2dt31283b
    日期:——
    Reduction of the tethered carborane 1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10 followed by metallation with CpCo} or (p-cymene)Ru} fragments affords both C,C′-dimethyl 4,1,2-MC2B10 and 4,1,6-MC2B10 species. DFT calculations indicate that the barriers to isomerisation of both 4-Cp-4,1,2-closo-CoC2B10H12 and 4-(η-C6H6)-4,1,2-closo-RuC2B10H12 to their respective 4,1,6-isomers are too high for this to be the origin of the unexpected formation of 4,1,6-MC2B10 products (in marked contrast to the related isomerisation of 1,2-closo-C2B11H13 to 1,6-closo-C2B11H13), and, indeed, the 4,1,2-species are recovered unchanged from refluxing toluene. Equally, the DFT-calculated profile for the isomerisation of [7,8-nido-C2B10H12]2− to [7,9-nido-C2B10H12]2− suggests that the unexpected formation of 4,1,6-metallacarboranes is unlikely to result from isomerisation of a reduced (nido) carborane following desilylation. Instead, the source of the 4,1,6-MC2B10 compounds is traced to desilylation of 1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10 by Li or Na prior to reduction. The supraicosahedral metallacarboranes 1,8-Me2-4-Cp-4,1,8-closo-CoC2B10H10, 1,12-Me2-4-Cp-4,1,12-closo-CoC2B10H10 and 1,12-Me2-4-(p-cymene)-4,1,12-closo-RuC2B10H10 are also reported with all new species characterised both spectroscopically and crystallographically.
    通过对联结的卡巴烯1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10进行还原,然后用CpCo}或(p-cymene)Ru}片段进行属化,可以得到C,C′-二甲基4,1,2-MC2B10和4,1,6-MC2B10物种。DFT计算表明,4-Cp-4,1,2-closo-CoC2B10H12和4-(η-C6H6)-4,1,2-closo-RuC2B10H12转变为各自的4,1,6-同分异构体的能量障碍过高,因此这并不是4,1,6-MC2B10产品意外生成的原因(与1,2-closo-C2B11H13转变为1,6-closo-C2B11H13 的相关同分异构化形成明显对比),实际上,4,1,2-物种在回流甲苯中保持不变。同样,DFT计算的[7,8-nido-C2B10H12]2−到[7,9-nido-C2B10H12]2−的同分异构化的能量轮廓也表明,4,1,6-属卡巴烯的意外形成不太可能是由于在去化后还原的(nido)卡巴烯所导致的。相反,4,1,6-MC2B10化合物的来源追溯到在还原之前,Li或Na对1,2-μ-(CH2SiMe2CH2)-1,2-closo-C2B10H10进行去化。此外,还报道了超二十面体属卡巴烯1,8-Me2-4-Cp-4,1,8-closo-CoC2B10H10、1,12-Me2-4-Cp-4,1,12-closo-CoC2B10H10和1,12-Me2-4-(p-cymene)-4,1,12-closo-RuC2B10H10,所有新物种均通过光谱学和晶体学进行了表征。
  • Supraicosahedral indenyl cobaltacarboranes
    作者:Greig Scott、Amelia McAnaw、David McKay、Alan S. F. Boyd、David Ellis、Georgina M. Rosair、Stuart A. Macgregor、Alan J. Welch、Franco Laschi、Fulvio Rossi、Piero Zanello
    DOI:10.1039/c003067h
    日期:——
    13-vertex indenyl cobaltacarboranes with 4,1,6-, 4,1,10- and 4,1,2-CoC2B10 architectures have been synthesised by reduction of the corresponding closo carborane and metallation with an (η-C9H7)Co} fragment. Variants of the 4,1,6-isomer were prepared with no, one and two methyl groups on cage C atoms, whilst 4,1,2-species were obtained both with two methyl groups and a trimethylene tether on the cage C atoms. Thermolysis of the 4,1,6-isomers yielded the corresponding 4,1,8-isomers, which in turn were converted to 4,1,12-isomers by thermolysis at higher temperatures. Alternatively relatively mild heating of the 4,1,10-isomer led to the 4,1,12-isomer directly. Products were characterised by mass spectrometry, 1H and 11B NMR spectroscopies and, in most cases, elemental analysis, and nine compounds were studied crystallographically. The 4,1,6-, 4,1,8-, 4,1,10- and 4,1,12- species have docosahedral cages whilst the 4,1,2-species are henicosahedral. In the structural studies attention focused on the orientation of the indenyl ligand with respect to the carborane ligand since this affords experimental information on the metal-cage bonding through the structural indenyl effect. There is a general tendency for the indenyl ligand to adopt orientations in which the ring junction C atoms lie trans to cage B atoms. In cases where the orientation is not compromised by the presence of a non-H substituent on the face of the carborane there is generally good agreement between the experimental orientation and that computed by DFT calculations for the related naphthalene ferracarboranes (η-C10H8)FeC2B10H12. The presence of C-methyl substituents in the indenyl cobaltacarboranes tends to override this preference except in the case of 1,6-Me2-4-(η-C9H7)-4,1,6-closo-CoC2B10H10 where the indenyl ligand instead is forced to incline away from the cage methyl groups. In DCM solution the 4,1,6-, 4,1,8-, 4,1,10- and 4,1,12- isomers of (η-C9H7)CoC2B10H12 exhibit two, stepwise, 1-electron reductions assigned to Co(III)/Co(II)/Co(I) couples at less negative potentials than those of the corresponding Cp compounds. Moreover these reductions are easier for those isomers (4,1,6- and 4,1,10-) in which there are two cage C atoms in the carborane face to which the metal atom is bound. By spectroelectrochemical and EPR measurements it is concluded that the reductions of these indenyl cobaltacarboranes are largely metal-based.
    通过还原相应的闭碳硼烷并用(η-C9H7)Co}片段属化,合成了具有 4,1,6-、4,1,10-和 4,1,2-CoC2B10结构的 13 芯硼烷。制备出的 4,1,6-异构体笼 C 原子上没有、有一个和两个甲基,而 4,1,2-异构体笼 C 原子上有两个甲基和一个三亚甲基。4,1,6-异构体的热分解产生了相应的 4,1,8-异构体,这些异构体又在较高温度下通过热分解转化为 4,1,12-异构体。另外,对 4,1,10-异构体进行相对温和的加热,可直接生成 4,1,12-异构体。通过质谱、1H 和 11B NMR 光谱以及大多数情况下的元素分析对产品进行了表征,并对九种化合物进行了晶体学研究。4,1,6-、4,1,8-、4,1,10- 和 4,1,12- 种类具有二十二面笼型,而 4,1,2 种类则为七面笼型。结构研究的重点是配体相对于碳硼烷配体的取向,因为这可以通过基结构效应提供有关属笼键合的实验信息。配体一般倾向于采用环结点 C 原子反向位于笼 B 原子的取向。在碳硼烷表面存在非 H 取代基而不影响取向的情况下,实验取向与通过 DFT 计算得出的相关硼烷 (η-C10H8)FeC2B10H12 的取向基本吻合。除了 1,6-Me2-4-(η- )-4,1,6-closo-CoC2B10H10 的情况外,硼烷中 C-甲基取代基的存在往往会推翻这种偏好,在这种情况下,配体被迫向远离笼状甲基的方向倾斜。在二氯甲烷溶液中,(η- )CoC2B10H12 的 4,1,6-、4,1,8-、4,1,10- 和 4,1,12-异构体在负电位低于相应 Cp 化合物的负电位时,表现出两种逐步的 1 电子还原反应,这些还原反应归因于 Co(III)/Co(II)/Co(I) 偶联。此外,对于属原子结合的碳硼烷面上有两个笼状 C 原子的异构体(4,1,6- 和 4,1,10-)来说,这些还原更容易。通过光谱电化学和 EPR 测量得出的结论是,这些硼烷的还原主要是以属为基础的。
  • On Desilylation of 13-Vertex Carborane 1,2-Me<sub>2</sub>Si(CH<sub>2</sub>)<sub>2</sub>-1,2-C<sub>2</sub>B<sub>11</sub>H<sub>11</sub>
    作者:Jian Zhang、Zuowei Xie
    DOI:10.1002/cjoc.201400433
    日期:2014.8
    facile double desilylation of 13‐vertex carborane 1,2‐Me2Si(CH2)2‐1,2‐C2B11H11 (2) are discussed in this article. New 13‐ and 14‐vertex ruthenacarboranes bearing the same ‐CH2SiMe2CH2‐ linkage have been prepared and structurally characterized for comparison. Structural analyses of 13‐ and 14‐vertex heteroboranes as well as control experiments suggest that the facile double desilylation of 2 on silica
    本文讨论了13-顶点碳硼烷1,2-Me 2 Si(CH 2)2 -1,2-C 2 B 11 H 11(2)容易进行双甲硅烷基化的原因。制备了带有相同CH 2 SiMe 2 CH 2键的13和14顶点的硼烷,并对其结构进行了比较。对13和14顶点杂硼烷的结构分析以及对照实验表明,硅胶上2的容易的双甲硅烷基化可归因于涉及exo五元C的高环应变的几个因素的共同作用。4 Si环,Si原子的路易斯酸度和二氧化硅表面的布朗斯台德酸度。
  • Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: B: B-Verb.12, 4.10, page 108 - 154
    作者:
    DOI:——
    日期:——
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