[Nd(η5-C5H4SiMe3)Me4] | 1253965-53-5

• 英文名称: [Nd(η5-C5H4SiMe3)Me4]
• 英文别名: (η5-C5H4SiMe3)NbMe4
• CAS: 1253965-53-5
• 化学式: C₁₂H₂₅NbSi
• 分子量: 290.322
• InChiKey: SWZNBLCQKLMHKK-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

• 作为反应物：
  描述：

  三异丙基硅烷醇 、 [Nd(η5-C5H4SiMe3)Me4] 以 甲苯 为溶剂， 以68%的产率得到(η5-C5H4SiMe3)NbMe3(OSi(iPr)3)
  参考文献：
  名称：

  Synthesis of neutral and cationic monocyclopentadienyl alkyl niobium and tantalum complexes

  摘要：

  Compound [NbCp'Me-4] (Cp' - eta(5)-C5H4SiMe3, 1) reacted with several ROH compounds (R - tBu, SiiPr(3), 2,6-Me2C6H3) to give the derivatives [NbCp'Me-3(OR)] (R = tBu 2a, SiiPr(3) 2b, 2,6-Me2C6H3 2c). The diaryloxo tantalum compound [TaCp*Me-2(OR)(2)] (Cp* = eta(5)-C5Me5, R = 2,6-Me2C6H3 3) was obtained by reaction of [TaCp*Cl2Me2] with 2 equiv of LiOR (R = 2,6-Me2C6H3). Abstraction of one methyl group from these neutral compounds 1-3 with the Lewis acids E(C6F5)(3) (E = B, Al) gave the ionic derivatives [NbCp'Me2X][MeE(C6F5)(3)] (X = Me 4-E X = OR; R = SiiPr(3) 5b-E, 2,6-Me2C6H3 5c-E E = B, Al) and [TaCp*Me(OR)(2)][MeE(C6F5)(3)] (R = 2,6-Me2C6H3 6-E; E = B, Al). Polymerization of MMA with the aryloxoniobium compound 2c and Al(C6F5) 3 gave syndiotactic PMMA in a low yield, whereas the tetramethylniobium compound 1 and the diaryloxotantalum derivative 3 were inactive. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2010.06.030
• 作为产物：
  描述：

  (η5-trimethylsilylcyclopentadienyl)niobium tetrachloride 、 甲基氯化镁 以 四氢呋喃 、 乙醚 为溶剂， 以80%的产率得到[Nd(η5-C5H4SiMe3)Me4]
  参考文献：
  名称：

  Synthesis of neutral and cationic monocyclopentadienyl alkyl niobium and tantalum complexes

  摘要：

  Compound [NbCp'Me-4] (Cp' - eta(5)-C5H4SiMe3, 1) reacted with several ROH compounds (R - tBu, SiiPr(3), 2,6-Me2C6H3) to give the derivatives [NbCp'Me-3(OR)] (R = tBu 2a, SiiPr(3) 2b, 2,6-Me2C6H3 2c). The diaryloxo tantalum compound [TaCp*Me-2(OR)(2)] (Cp* = eta(5)-C5Me5, R = 2,6-Me2C6H3 3) was obtained by reaction of [TaCp*Cl2Me2] with 2 equiv of LiOR (R = 2,6-Me2C6H3). Abstraction of one methyl group from these neutral compounds 1-3 with the Lewis acids E(C6F5)(3) (E = B, Al) gave the ionic derivatives [NbCp'Me2X][MeE(C6F5)(3)] (X = Me 4-E X = OR; R = SiiPr(3) 5b-E, 2,6-Me2C6H3 5c-E E = B, Al) and [TaCp*Me(OR)(2)][MeE(C6F5)(3)] (R = 2,6-Me2C6H3 6-E; E = B, Al). Polymerization of MMA with the aryloxoniobium compound 2c and Al(C6F5) 3 gave syndiotactic PMMA in a low yield, whereas the tetramethylniobium compound 1 and the diaryloxotantalum derivative 3 were inactive. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2010.06.030

文献信息

• Trapping Unstable Terminal M−O Multiple Bonds of Monocyclopentadienyl Niobium and Tantalum Complexes with Lewis Acids
  作者：Javier Sánchez-Nieves、Luis M. Frutos、Pascual Royo、Obis Castaño、Eberhardt Herdtweck、Marta E. G. Mosquera

  DOI：10.1021/ic1016609

  日期：2010.11.15

  CpR = Cp′, X = Cl 2a) afforded the oxo-alane complexes [MCpRX2O·Al(C6F5)3}] (M = Ta, CpR = Cp*, X = Cl 3a, Bz 3b, Me 3c; M = Nb, CpR = Cp′, X = Cl 4a), releasing B(C6F5)3. Compound 3a was also obtained by addition of Al(C6F5)3 to the dinuclear μ-oxo compound [TaCp*Cl2(μ-O)]2, meanwhile addition of the water adduct H2O·Al(C6F5)3 to [TaCp*Me4] gave complex 3c. The structure of 2a and 3a was obtained

  的水解[NbCP'Cl 4 ]（CP'=η 5 -C 5 H ^ 4森达3）与水的加合物ħ 2 O·B（C 6 ˚F 5）3，得到氧代硼烷化合物〔NbCP'Cl 2 O·B（C 6 F 5）3 }]（2a）。该化合物与[MgBz 2（THF）2 ]反应，得到[NbCP'Bz 2 O·B（C 6 F 5）3 }]（2b），而[NbCP'Me 2 O·B（C 6 F由[NbCP'Me 4 ]与H 2 O·B（C 6 F 5）3的反应获得（5）3 }]（2c）。的Al（C的另外6 ˚F 5）3，以含有氧代硼烷化合物[MCP解决方案- [R X 2 O·B（C 6 ˚F 5）3 }]（M =钽中，CP [R =η 5 -C 5我5（CP *），X = Cl 1a，Bz 1b，Me 1c； M = Nb，CP R＝ CP′，X ＝ Cl 2a）得到氧代-烷烃配合物[MCa href=https://www.molaid.com/MS_6449 target="_blank">CP R X 2 O·Al（C