[η(5)-C5H3(SiMe3)2]2Yb(THF) | 178164-26-6

• 英文名称: [η(5)-C5H3(SiMe3)2]2Yb(THF)
• 英文别名: [Yb(η-C5H3(SiMe3)2)2(THF)]；tris(η5-1,3-bis(trimethylsilyl)cyclopentadienyl)(tetrahydrofuran)ytterbium(III)；[1,3-(Me3Si)2C5H3]2Yb(THF)
• CAS: 178164-26-6
• 化学式: C₂₆H₅₀OSi₄Yb
• 分子量: 664.064
• InChiKey: XQTNDGOOSNGUPF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 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：
  None
• 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：

  [η(5)-C5H3(SiMe3)2]2Yb(THF) 、 bis(1,3-bis(trimethylsilyl)cyclopentadienyl)mercury 以 正己烷 、 甲苯 为溶剂， 以90%的产率得到tris(η5-1,3-bis(trimethylsilyl)cyclopentadienyl)ytterbium(III)
  参考文献：
  名称：

  Syntheses and Structures of the Crystalline, Highly Crowded 1,3-Bis(trimethylsilyl)cyclopentadienyls [MCp″₃] (M = Y, Er, Yb), [PbCp″₂], [{YCp″₂(μ-OH)}₂], [(ScCp″₂)₂(μ-η²:η²-C₂H₄)], [YbCp″₂Cl(μ-Cl)K(18-crown-6)], and [{KCp″}_∞]

  摘要：

  Yttrium and the smaller group 3 and 4f metal homoleptic M(III) cyclopentadienyls [MCp ''(3)] (Cp '' = [eta(5)-C5H3(SiMe3)(2)-1,3](-) and M = Y (1Y), Er (1Er), or Yb (1Yb)) were prepared from YCp '' I-2 (2Y) or the appropriate [LnCp '' I-2(thf)] and KCp '' in satisfactory (1Y), very low (1Er), or low (1Yb) yield. Attempted reaction of [ScCp '' I-2(thf)] with KCp '' failed to produce the homoleptic Sc(III) cyclopentadienyl. Compound 1Yb was synthesized in better yield by the redox reaction between [YbCp ''(2)(thf)] and either [PbCp ''(2)] (3) or the in situ prepared HgCp ''(2) (4) analogue. Complexes 3 and 4 were obtained by a salt metathesis route, 3 was isolated as a crystalline solid, while 4 was used only as a hexane solution. The structures of crystalline 1Y, 1Yb, 3, [{YCp ''(2)(mu-OH)}(2)] (5Y) [prepared by hydrolysis of 1Y], [(ScCp ''(2))(2)-(mu-eta(2):eta(2)-C2H4)] (6) {isolated in low yield from the reaction of ScCp '' I-2 (2Sc) with [K(18-crown-6)](2)[C6H2(SiMe3)(4)-1,2,4,5]}, [LaCp '' Cl-2(mu-Cl)K(18-crown-6)] (7La) {obtained from the foregoing potassium reagent and [{LaCp ''(2)(mu-Cl)}(2)]}, [YbCp '' Cl-2(mu-Cl)K(18-crown-6)] (7Yb), and [{KCp ''}(infinity)] (8) were determined by X-ray diffraction.

  DOI：

  10.1021/om2009364

文献信息

• Syntheses and crystal structures of two ytterbocene complexes [Yb(η-Cp′′)2I(THF)] and [Yb(η-Cp′′)2(μ-Cl)2Li(THF)2] (Cp′′=C5H3(SiMe3)2-1,3)
  作者：Peter B. Hitchcock、Michael F. Lappert、Sanjiv Prashar

  DOI：10.1016/s0022-328x(00)00509-x

  日期：2000.10

  [Yb(η-Cp′′)2I(THF)] (1) (Cp′′=C5H3(SiMe3)2-1,3) was synthesized by the reaction of two equivalents of Na(Cp′′) with YbI3(THF)2 (obtained from Yb and an excess of (ICH2)2 in THF). The heterobimetallic complex [Yb(η-Cp′′)2(μ-Cl)2Li(THF)2] (2) was prepared from two equivalents of Li(Cp′′) with YbCl3. The crystal structures of 1 and 2 have been determined. The formation of the ytterbium(II) complex [Yb(η-Cp′′)(OAr)(THF)x]

  通过两次反应合成碘化叔戊烯（III）[Yb（η-CP''）2 I（THF）]（1）（CP''= C 5 H 3（SiMe 3）2 -1,3）。当量的Na（CP''）与YbI 3（THF）2（从Yb和THF中过量的（ICH 2）2获得）。异双金属配合物[Yb（η-CP''）2（μ-Cl）2 Li（THF）2 ]（2）由两当量的Li（CP''）和YbCl 3制备。1和2的晶体结构已经确定。观察到complex（II）配合物[Yb（η-CP''）（OAr）（THF）x ]（3）（OAr = OC 6 H 2 Bu t 2 -2,6-Me-4）的形成。 （1 H-和171的Yb-NMR光谱法）或者钠（CP''）或[镱（η-CP''）的反应过程中2（THF）]与[镱（OAR）2（THF）3 ]。