(C5Me5)2Sm{(μ-Me)AlMe2(μ-Me)}2Sm(C5Me5)2 | 115756-72-4

• 英文名称: (C5Me5)2Sm{(μ-Me)AlMe2(μ-Me)}2Sm(C5Me5)2
• 英文别名: [Cp*₂Sm(μ-AlMe₄)]₂；[(C5Me5)2Sm(μ-Me)2AlMe2]2
• CAS: 115756-72-4
• 化学式: C₄₈H₈₄Al₂Sm₂
• 分子量: 1015.88
• InChiKey: KGEYSBUQMSVVIB-UHFFFAOYSA-N

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：

  (C5Me5)2Sm{(μ-Me)AlMe2(μ-Me)}2Sm(C5Me5)2 以 氘代甲苯 为溶剂， 生成 (C5Me5)2Sm(μ-Me)2AlMe2
  参考文献：
  名称：

  Reactivity of trimethylaluminum with (C5Me5)2Sm(THF)2: synthesis, structure, and reactivity of the samarium methyl complexes (C5Me5)2Sm[(.mu.-Me)AlMe2(.mu.-Me)]2Sm(C5Me5)2 and (C5Me5)2SmMe(THF)

  摘要：

  DOI：

  10.1021/ja00227a023
• 作为产物：
  描述：

  [Cp*₂Sm-(μ-PhCO₂)₂-SmCp*₂] 、 三甲基铝 以 甲苯 为溶剂， 生成 (C5Me5)2Sm{(μ-Me)AlMe2(μ-Me)}2Sm(C5Me5)2 、 (C5Me5)2Sm(μ-Me)2AlMe2
  参考文献：
  名称：

  An Ethyl Aluminum Oxide (EAO) Complex with μ-η¹:η²-Ethyl Coordination Derived from a Samarocene Carboxylate and Triethylaluminum

  摘要：

  The samarocene carboxylate [(C5Me5)(2)Sm(mu-O2CPh)](2) reacts with AlEt3 to form a mixture of metallocene-stabilized ethylaluminum compounds, including an ethyl aluminum oxide (EAO) complex, [(C5Me5)(2)Sm](2)-[(mu-Et)(4)Al4Et6O2], that displays mu-eta(1):eta(2)-Et coordination similar to that found in [(C5Me5)(2)Sm(mu-Et)(mu-Cl)AlEt2](2) obtained from the reaction between [(C5Me5)(2)Sm(mu-Cl)](3) and AlEt3.

  DOI：

  10.1021/om050270w

文献信息

• Ln(II)/Pb(II)–Ln(III)/Pb(0) Redox Approach toward Rare-Earth-Metal Half-Sandwich Complexes
  作者：André M. Bienfait、Benjamin M. Wolf、Karl W. Törnroos、Reiner Anwander

  DOI：10.1021/acs.organomet.5b00837

  日期：2015.12.28

  The divalent bis(trimethylsilyl)amide complexes Ln[N(SiMe3)(2)](2)(THF)(2) (Ln = Sm, Yb) react with 0.5 equiv of lead(II) pentamethylcydopentadienide, Cp-2*Pb (Cp* = C5Me5), in n-hexane to form the half-sandwich complexes Cp*Ln[N(SiMe3)(2)](2) (Ln = Sm, Yb) in almost quantitative yield. The same reaction performed with Eu[N(SiMes)(2)](2)(THF)(2) resulted in the cocrystallization of the sandwich complex Cp-2*Eu[N(SiMe3)(2)] and homoleptic Eu[N(SiMe3)(2)](3). The divalent bis(dimethylsilyl)amide complexes Lnmu-N(SiHMe2)(2)}(2)Ln[N(SiHMe2)(2)](THF)}(2) (Ln = Sm, Yb) react with 1.5 equiv of Cp-2*Pb in n-hexane/THF to form the half-sandwich complexes Cp*Ln[N(SiHMe2)(2)](2)(THF) (Ln = Sm, Yb). The corresponding europium reaction did not provide any crystalline material. Treatment of divalent Eu[N(SiMe3)(2)](2)(THF)(2) with 2 equiv of 3-tert-butyl-5-methylpyrazole (Hpz(tBu,Me)) in THF generates [(pz(tBu,Me))Eu(mu-pz(tBu,Me))(THF)(2)](2). Oxidation of the europium(II) pyrazolate complex with 1 equiv of Cp-2*Pb in THF afforded Cp*Eu(mu-pz(tBu,Me)) (THF)(2). The tetramethylaluminate compounds Ln(AlMe4)(2)}(n) (Ln = Sm, Yb) react with 0.5 equiv of PbCp2* in n-hexane to produce mixtures of half-sandwich and metallocene complexes Cp*Ln(AlMe4)(2) and [Cp-2*Ln(mu-AlMe4)](2), respectively. The attempted oxidation of Eu(AlMe4)(2)} led to the formation of Cp*Eu(AlMe4)}, which could be crystallized from THF to give polymeric Cp*Eu(mu-AlMe4)(THF)(3)}(n). The reaction of "chloro-contaminated" Sm(AlMe4)(2)} with 2 equiv of HCp* performed in THF led to the isolation of the unexpected mixed chloride methylidene complex [Cp-3*Sm-3(mu(2)-Cl)(3)(mu(3)-Cl)(mu(3)-CH2)(THF)(3)]. Reacting Yb(AlEt4)(2)}(n) with 0.5 equiv of Cp-2*Pb in n-hexane gave a mixture of products, from which Cp-2*Yb(AlEt4) was identified. Performing the same reaction in toluene in the presence of diethyl ether resulted in the formation of the divalent metathesis product Cp*Yb(AlEt4)(Et2O)(2).