trans-[YbI2(tetraglyme)] | 710945-92-9

• 分子结构分类: 有机化合物 - 有机氮化合物
• 英文名称: trans-[YbI2(tetraglyme)]
• CAS: 710945-92-9
• 化学式: C₁₀H₂₂I₂O₅Yb
• 分子量: 649.131
• InChiKey: XPKJBGCKFILBMK-UHFFFAOYSA-L

计算性质

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

反应信息

• 作为产物：
  描述：

  四氢呋喃 、 1,2-二碘乙烷 、 四乙二醇二甲醚 、 氢化镱 以 四氢呋喃 为溶剂， 以58%的产率得到trans-[YbI2(tetraglyme)]
  参考文献：
  名称：

  Synthesis, crystal structure, and chirality of divalent lanthanide reagents containing tri- and tetraglyme

  摘要：

  Six new divalent lanthanide complexes using triglyme (trigly) and tetraglyme (tetgly) as achiral ligands have been prepared, using a facile synthetic method, in search for enantioselective solid-state reagents. The crystal structures of cis-[SmI2(trigly)thfl] (1), trans[YbI2(trigly)thf] (2), trans-[SMI2(trigly)dme] (3), trans-[YbI2(tetgly)] (4), trans-[EuI2(tetgly)thfl] (5), and [SM(tetgly)2][SMI3(tetgly)]I (6) have been determined. All complexes, except 5, are chiral. The 10-coordinate cation in 6 displays a helical chirality since the two tetraglyme ligands are wrapped around the samarium ion. Since trans-[YbI2(tetgly)] (4), which has a chiral arrangement of terminal methyl groups, crystallizes as a conglomerate, preferential crystallization and consequent enantioselective reduction of acetophenone was attempted, but resulted in racemic products, possibly on account of racemic twinning in 4. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2003.12.046