(η(2)-C.tplbond.CPh)Co2(CO)6(CH2=CHSiCl2) | 182363-10-6

• 英文名称: (η(2)-C.tplbond.CPh)Co2(CO)6(CH2=CHSiCl2)
• CAS: 182363-10-6
• 化学式: C₁₆H₈Cl₂Co₂O₆Si
• 分子量: 513.214
• InChiKey: GHGLLOQHDSKZHA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  dicobalt octacarbonyl 、 dichloro(phenylethynyl)(vinyl)silane 以 甲苯 、 正戊烷 为溶剂， 以82%的产率得到(η(2)-C.tplbond.CPh)Co2(CO)6(CH2=CHSiCl2)
  参考文献：
  名称：

  Koordinationsverhalten vinyl- und alkinylfunktionalisierter chlorsilane

  摘要：

  The coordination ability of vinyl and alkynyl substituted chlorosilanes of type (H2C=CH)(R)SiCl2 (1a R = Cl, Ib R = CH3, 1c R = C=CPh), (H2C=CH)(PhC=C)(R)SiCl [1d R = N(SiMe(3))(2), 1e R = C=CPh], as well as of the disiloxane [(H2C=CH)(PhC=C)(2)Si]O-2 (11) towards different organometallic compounds, such as Fe-2(CO)(9) (2), MnCp(CO)(3) (4, Cp = eta(5)-C5H5) and Co-2(CO)(8) (6) is discussed. Treatment of the vinylchlorosilanes 1a and 1b with Fe-2(CO)(9) (2) or MnCp(CO)(3) (4) in n-pentane or n-hexane produces the compounds [(eta(2)-H2C=CH)ML(n)](R)SiCl2 [3a ML(n) = Fe(CO)(4), R = Cl; 3b ML(n) = Fe(CO)(4), R = CH3; 5a ML(n) = MnCp(CO)(2), R = Cl; 5b ML(n) = MnCp(CO)(2), R = CH3] in which the vinyl unit is eta(2)-coordinated to an Fe(CO)(4) or MnCp(CO)(2) moiety. While compounds la or Ib do not react with Co-2(CO)(8) (6) under similar applied reaction conditions, it is found that the alkynyl substituted chlorosilanes 1c-1e yield on addition of Co-2(CO)(8) the complexes [(eta(2)-C=CPh)Co-2(Co)(6)](H2C=CH)(R)SiCl [7a R = Cl, 7b R = N(SiMe(3))(2), 7e R = C=CPh] or [(eta(2)-C=CPh)Co-2(CO)(6)](2)(H2C=CH)SiCl (7d) respectively. In these compounds, the phenylethinyl ligands are eta(2)-coordinated to a Co-2(CO)(6) fragment, thus forming bulky dicobalta-tetrahedrane units. Hydrolysis of compound 7c produces the disiloxane {[(eta(2)-C=CPh)Co-2(CO)(6)](H2C=CH)(PhC=C)Si}O-2 (9). Additionally, this compound can be synthesized by the reaction of [(H2C=CH)(PhC=C)(2)Si]O-2 (11) with two equivalents of Co-2(CO)(8) (6). On treatment of 6 with one equivalent of the disiloxane 11 the formation of compound [(eta(2)-C=CPh)Co-2(CO)(6)](H2C=CH)(PhC=C)Si-O-Si(HC=CH2)(C=CPh)(2) (12) is obtained.All compounds were characterized by analytical and spectroscopic data (IR, H-1, C-13, Si-29 NMR, MS). The solid state structures of compounds [(eta(2)-C=CPh)Co-2(CO)(6)](H2C=CH)SiCl2 (7a) and [(eta(2)-C=CPh)Co-2(CO)(6)](H2C=CH)(PhC=C)SiCl (7c) are reported. Complexes 7a and 7c crystallize in the triclinic space group with the following cell parameters: 7a a = 816.8(3), b = 1597.5(9), c = 1601.5(8) pm, alpha = 101.49(4), beta = 100.01(4), gamma = 96.55(4)degrees, V = 2003(1) x 10(6) pm(3) and Z = 4; 7c a = 827.6(2), b = 914.0(2), c = 1696.7(5) pm, alpha = 89.35(2), beta = 76.75(2), gamma = 84.05(2)degrees, V = 1242(1) x 10(6) pm(3) and Z = 2.

  DOI：

  10.1016/0022-328x(96)06287-0