| 270903-79-2

• CAS: 270903-79-2
• 化学式: C₃₂H₄₀NYb
• 分子量: 611.716
• InChiKey: QPFWWFVKKAQMCI-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：
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• 环数：
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• sp3杂化的碳原子比例：
  None
• 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：

  bis(pentamethylcyclopentadienyl)ytterbium(Cl)(THF) 、 二苯胺钠盐 以 四氢呋喃 、 甲苯 为溶剂， 以73.3%的产率得到
  参考文献：
  名称：

  Heteroleptic diphenylamido complexes of ytterbium: syntheses and molecular structures of (MeC5H4)2YbNPh2(THF) and (C5Me5)2YbNPh2

  摘要：

  Reaction of ytterbocene chloride with NaNPh2 in THF or toluene-THF at 0 degrees C yielded the neutral diphenylamido complexes (MeC5H4)(2)YbNPh2(THF) (1), (t-BuC5H4)(2)YbNPh2(THF) (2) and (C5Me5)(2)YbNPh2 (3) in good yields. The crystal structures of 1 and 3 were identified by X-ray diffraction analysis. Complex 1 has a distorted tetrahedral arrangement around ytterbium by two MeC5H4 groups. one oxygen atom and one nitrogen atom [orthorhombic, space group Pbca (no. 61); a = 15.188(1), b = 18.145(1), c = 17.444(1) Angstrom; V = 4807.3(5) Angstrom(3), Z = 8, D-calc. = 1.579 g cm(-3)]. The crystal structure of 3 [monoclinic, space group P2(1)/n; a = 15,834(2), b = 9.992(2), c = 18.503(3) Angstrom; beta = 104.060(10)degrees, V = 2839.9(8) Angstrom(3), Z = 4, D-calc. = 1.431 g cm(-3)] hows a triangular array of two C5Me5 groups and one nitrogen atom surrounding ytterbium with additional intramolecular Yb-eta(2)-Ph chelate interactions [Yb-C = 2.986(6) and 3.053(6) Angstrom]. The complexes 1 and 2 exhibit good catalytic activity for the polymerization of methyl methacrylate. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(99)00735-4