[Sm(3-butenylcyclopentadienyl)ErCl(tetrahydrofuran)2] | 440671-90-9

• 英文名称: [Sm(3-butenylcyclopentadienyl)ErCl(tetrahydrofuran)2]
• CAS: 440671-90-9
• 化学式: C₂₆H₃₈ClErO₂
• 分子量: 585.3
• InChiKey: FPMLLCDRIIRESO-UHFFFAOYSA-M

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 、 氯化铒(III) 、 potassium (but-3-enyl)cyclopentadienide 以 四氢呋喃 为溶剂， 以53%的产率得到[Sm(3-butenylcyclopentadienyl)ErCl(tetrahydrofuran)2]
  参考文献：
  名称：

  Synthesis, characterization and application of organolanthanide complexes (CH 2 CHCH 2 CH 2 C 5 H 4 ) 2 Ln Cl·2THF (Ln=Sm, Y, Dy, Er) as methyl methacrylate (MMA) polymerization catalysts

  摘要：

  The title complexes (CH2-CHCH2CH2C5H4)(2)Ln-Cl(.)2THF (Ln = Sm, Y, Dy, Er) were synthesized as air and moisture sensitive free-flowing oils that have been fully characterized by MS, EA and IR. The EA and IR results indicate the presence of coordinated THF molecules. No evidence of intra-molecular coordination of the butenyl side-chain was observed. In association with AL(i-Bu)(3), the complexes have shown high activity for the bulk polymerization of MMA. At a MMA/catalyst (MMA/cat) molar ratio of 2000, temperature of 80 C and polymerization time of 30 h, the catalyst system produced at a 70% conversion a syndiorich polymer (rr = 62%), M-n = 1.65 x 10(6). Effects of temperature, time and molar ratios of MMA/catalyst and catalyst/cocatalyst on the polymerization have been studied. The result showed that higher temperature, longer time and Al/catalyst molar ratio = 10 are conditions suitable for polymerization. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(01)01282-7