Sm2Na8(OCH2CF3)14(THF)6 | 1031389-01-1

• 英文名称: Sm2Na8(OCH2CF3)14(THF)6
• 英文别名: Sm₂Na₈(OCH2CF3)₁₄(THF)₆
• CAS: 1031389-01-1
• 化学式: C₅₂H₇₆F₄₂Na₈O₂₀Sm₂
• 分子量: 2303.73
• InChiKey: MUTNWPVSWGSYKV-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：

  四氢呋喃 、 2,2,2-三氟乙醇钠 、 氯化钐 以 四氢呋喃 为溶剂， 以68%的产率得到Sm2Na8(OCH2CF3)14(THF)6
  参考文献：
  名称：

  Synthesis and molecular structure of new heterometal alkoxide clusters Ln2Na8(OCH2CF3)14(THF)6 (Ln=Sm,Y,Yb): Highly active catalysts for polymerization of ε-caprolactone and trimethylene carbonate

  摘要：

  The new polynuclear heterometal alkoxide clusters Ln(2)Na(8)(OCH2CF3)(14)(THF)(6) (Ln = Sm 1, Y 2, Yb 3) have been synthesized by the reaction of anhydrous LnCl(3) with 7 equiv. of NaOCH2CF3 in 68-75% yields. Crystal structural analysis revealed clusters 1-3 are isomorphous composed of two cubanes and a double open cubane, with one face of an Ln(1)Na(2)O(4) open cubane capped by an additional Ln(1)O(2) layer. Clusters 1-3 show extremely high activity for the polymerization of epsilon-caprolactone (epsilon-CL) and trimethylene carbonate (TMC). The reactivity is much higher than those found for the monometallic alkoxides lanthanide complexes previously reported. The dependence of catalytic activity on lanthanide metals is observed: Yb approximate to Y < Sm for epsilon-CL and Yb < Y < Sm for TMC. The polymers obtained with these clusters all show a unimodal molecular weight distribution with moderate molecular weight distributions (M-w/M-n = 1.4-1.7), indicating that clusters 1-3 can really be used as single-component catalysts. The bimetallic cooperation and the coordination-insertion mechanism were proposed. (C) 2008 Published by Elsevier Ltd.

  DOI：

  10.1016/j.poly.2008.01.031

文献信息

• 一种稀土/钠杂双金属配合物及其制备方法和 用途
  申请人：安徽大学

  公开号：CN104961777B

  公开（公告）日：2017-10-31

  本发明公开了一种稀土/钠杂双金属配合物及其制备方法和用途，其中稀土/钠杂双金属配合物的分子式为：Ln2Na8(OCH2CF3)14(THF)6，Ln代表稀土金属。本发明稀土/钠杂双金属配合物可用于催化酰胺交换反应来合成酰胺化合物，反应条件温和，催化剂用量较低并且底物的适用范围较广。