1,1,2,2-tetramethyldigermane | 59409-81-3

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: 1,1,2,2-tetramethyldigermane
• 英文别名: tetramethyldigermane；1,1,2,2-Tetramethyldigerman
• CAS: 59409-81-3
• 化学式: C₄H₁₄Ge₂
• 分子量: 207.335
• InChiKey: FPBRLCAYMUFLCV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.04
• 重原子数：
  6.0
• 可旋转键数：
  1.0
• 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

• 作为反应物：
  描述：

  乙烯双(三苯基磷)铂 、 1,1,2,2-tetramethyldigermane 以 苯 为溶剂， 以56%的产率得到(tetramethyldigermyl)bis(triphenylphosphine)platinum(II)
  参考文献：
  名称：

  Synthesis and reactivity of digermylplatinum(II) complexes Me2tL2 (n=0, 1, 2)

  摘要：

  This work concerns the synthesis of [bis(dimethylgermyl)alkane]bis(triphenylphosphine)platine(II) and -(diphos)platine(II) Me2Ge(CH2)nGe(Me2)PtL2 (n = 2, L = PPh3 (1), diphos (2); n = l, L = PPh3 (3), diphos (4) and (tetramethyldigermyl)bis(triphenylphosphine)platine(II) and -(diphos)platine(II) Me2GeGe(Me2)PtL2 (L=PPh3 (5), diphos (6). 3 and 5 are obtained by cyclization of bis(dimethylgermyl)alkanes Me2(H)Ge(CH2)nGe(H)Me2 (n = 1 or 2) or 1,1,2,2-tetramethyldigermane Me2(H)GeGe(H)Me2 with (Ph3P)2PtC2H4. The polymeric structures [Me2Ge(CH)2)nGe(Me2)Pt(PPh3)2]m (n = 1 or 2) react with diphos to give the monomer complexes 2 or 4. IR and NMR examinations are reported. Various cleavage reactions with halogens and organic halides are described. Reactions of 2 with phenylacetylene and 1,2,4-triazolinediones afford new heterocycles arising- from formal addition of these unsaturated systems across the Ge-Ge bond of the tetramethyldigermetane Me2Ge(CH2)2GeMe2.

  DOI：

  10.1016/s0020-1693(00)92390-9
• 作为产物：
  描述：

  二甲基锗烷 、 二甲基锗 以 gas 为溶剂， 生成 1,1,2,2-tetramethyldigermane
  参考文献：
  名称：

  germ烯和二甲基亚锗烯与二甲基锗烷反应的绝对速率常数：重碳烯中甲基的钝化作用

  摘要：

  标题反应的气相速率常数已通过使用光前体，GeH 2的3,4-二甲基-1-锗环戊-3-烯和GeMe 2的五甲基二茂铁在297 K下通过激光快速光解获得。获得的值为（）：对于GeH 2为（2.38±0.11）×10 -10，对于GeMe 2为（2.26±0.10）×10 -13。这些结果表明，GeMe 2在Me 2 GeH 2的GeH键中的插入反应比GeH 2慢1050倍。。这是根据涉及中间H-桥联配合物的一般机理来解释的，该机理适用于亚甲硅烷基和亚二甲基亚砜的插入。对于GeMe 2插入，反应物与配合物处于平衡状态，该配合物在速率控制步骤中重新排列为产物。

  DOI：

  10.1016/s0009-2614(01)01257-x

文献信息

• Molecular Structures of the Digermanes Me₂XGeGeXMe₂ (X = Me, Cl, and H): An Ab Initio Study Combined with Experimental Investigation by Raman Spectroscopy and Gas Electron Diffraction
  作者：Margit Hölbling、Sarah L. Masters (née Hinchley)、Michaela Flock、Judith Baumgartner、Karl Hassler、Heather E. Robertson、Derek A. Wann

  DOI：10.1021/ic7018764

  日期：2008.4.1

  sets were employed. Determination of structural parameters in the gas phase by gas electron diffraction confirmed the computed predictions for all three compounds. For 2 and 3, the ratios of antiperiplanar to synclinal conformer were detected to be 90:10 (328 K) and 72:28 (293 K), respectively, by gas electron diffraction. The experimentally determined GeGe bond lengths in 1, 2, and 3 in the gas phase

  进行了从头算计算，以研究甲基化的Digermanes hexamethyldigermane Me（3）GeGeMe（3）（1），dichlorotetramethyldigermane Me（2）ClGeGeClMe（2）（2）和tetramethyldigermane Me（ 2）HGeGeHMe（2）（3）。在理论的DFT和MP2级别采用了不同的基础集[6-31 + G（d），SDD，aug-cc-pVTZ]来优化结构并计算能量和振动频率。对于1，一个代表交错结构的最小值位于势能表面上。对于2和3，发现具有C 2对称性的反周平面构象是全局最小值。另外，当使用某些基础集时，对向斜最小定位为2和3。通过气相电子衍射确定气相中的结构参数，证实了对所有三种化合物的计算预测。对于2和3，通过气体电子衍射检测到，腹膜外顺应形与顺眼顺应形的比例分别为90:10（328 K）和72:28（293 K
• Synthesis and reactivity of digermylplatinum(II) complexes Me2tL2 (n=0, 1, 2)
  作者：J. Barrau、G. Rima、V. Cassano、J. Satgé

  DOI：10.1016/s0020-1693(00)92390-9

  日期：1992.8

  This work concerns the synthesis of [bis(dimethylgermyl)alkane]bis(triphenylphosphine)platine(II) and -(diphos)platine(II) Me2Ge(CH2)nGe(Me2)PtL2 (n = 2, L = PPh3 (1), diphos (2); n = l, L = PPh3 (3), diphos (4) and (tetramethyldigermyl)bis(triphenylphosphine)platine(II) and -(diphos)platine(II) Me2GeGe(Me2)PtL2 (L=PPh3 (5), diphos (6). 3 and 5 are obtained by cyclization of bis(dimethylgermyl)alkanes Me2(H)Ge(CH2)nGe(H)Me2 (n = 1 or 2) or 1,1,2,2-tetramethyldigermane Me2(H)GeGe(H)Me2 with (Ph3P)2PtC2H4. The polymeric structures [Me2Ge(CH)2)nGe(Me2)Pt(PPh3)2]m (n = 1 or 2) react with diphos to give the monomer complexes 2 or 4. IR and NMR examinations are reported. Various cleavage reactions with halogens and organic halides are described. Reactions of 2 with phenylacetylene and 1,2,4-triazolinediones afford new heterocycles arising- from formal addition of these unsaturated systems across the Ge-Ge bond of the tetramethyldigermetane Me2Ge(CH2)2GeMe2.
• Absolute rate constants for the reactions of germylene and dimethylgermylene with dimethylgermane: the deactivating effect of methyl groups in heavy carbenes
  作者：Rosa Becerra、Mikhail P Egorov、Irina V Krylova、Oleg M Nefedov、Robin Walsh

  DOI：10.1016/s0009-2614(01)01257-x

  日期：2002.1

  Gas-phase rate constants for the title reactions have been obtained by laser flash photolysis at 297 K, by use of photoprecursors, 3,4-dimethyl-1-germacyclopent-3-ene for GeH2 and pentamethyldigermane for GeMe2. The values obtained were (): (2.38±0.11)×10−10 for GeH2, (2.26±0.10)×10−13 for GeMe2. These results show that the insertion reaction of GeMe2 is 1050 times slower than that of GeH2 into the

  标题反应的气相速率常数已通过使用光前体，GeH 2的3,4-二甲基-1-锗环戊-3-烯和GeMe 2的五甲基二茂铁在297 K下通过激光快速光解获得。获得的值为（）：对于GeH 2为（2.38±0.11）×10 -10，对于GeMe 2为（2.26±0.10）×10 -13。这些结果表明，GeMe 2在Me 2 GeH 2的GeH键中的插入反应比GeH 2慢1050倍。。这是根据涉及中间H-桥联配合物的一般机理来解释的，该机理适用于亚甲硅烷基和亚二甲基亚砜的插入。对于GeMe 2插入，反应物与配合物处于平衡状态，该配合物在速率控制步骤中重新排列为产物。