| 510720-08-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧唑烯
• CAS: 510720-08-8
• 化学式: C₁₆H₃₂LiO₄*C₂₁H₅₇Si₆Yb
• 分子量: 946.605
• InChiKey: WRMBKPDBAFATBQ-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

• 作为产物：
  描述：

  四氢呋喃 、 ytterbium(II) iodide 、 bis(trimethylsilyl)methyllithium 、 KCH(SiMe₃)₂ 以 四氢呋喃 、 乙醚 为溶剂， 以52%的产率得到
  参考文献：
  名称：

  Synthesis and structures of crystalline bis(trimethylsilyl)methanido complexes of potassium, calcium and ytterbium

  摘要：

  Crystalline [K(mu-R)(thf)](infinity) (1) was obtained from equivalent portions of n-butyllithium. in hexane, bis(trimethylsilyl)methane (= RH) and potassium t-butoxide in thf, removal of volatiles and extraction with hexane. Desolvation of 1 in a vacuum led to KR. The first three-coordinate metallate(II) alkyls [K(MR3)]. [M = Ca (2), M = Yb (3)] of calcium and ytterbium(II) were prepared from the appropriate metal(II) iodide and three equivalents of KR in benzene. Mixing LiR, YbI2 and two equivalents of KR in a mixture of diethyl ether and small amount of thf yielded the red (like 3) [Li(thf)(4)][YbR3] (4). Each of 1-4 was obtained in good yield and was characterised by multinuclear NMR spectra in C6D6 and single crystal X-ray diffraction. The central metal is in a trigonal planar 1 or pyramidal 2-4 environment and the average M-C bond lengths are 2.98 (1), 2.50 (2), 2.52 (3 and 4) Angstrom. Crystalline 2 and 3 are isomorphous and consist of double chains of [MR3] (-) anions linked by K cations along the a axis, whereas complex 4 has an ionic structure with isolated [Li(thf)(4)](+) cation and [YbR3](-) anion. (C) 2002 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(02)01766-7