[(2,2'-methylene-bis(6-tert-butyl-4-methylphenoxo))Yb(μ-η1:η2-O2CNHPh)(THF)2]2 | 1140419-24-4

• 英文名称: [(2,2'-methylene-bis(6-tert-butyl-4-methylphenoxo))Yb(μ-η1:η2-O2CNHPh)(THF)2]2
• CAS: 1140419-24-4
• 化学式: C₇₆H₁₀₄N₂O₁₂Yb₂
• 分子量: 1583.75
• InChiKey: DYJQJKMCHHSZBP-UHFFFAOYSA-H

反应信息

• 作为产物：
  描述：

  [(2,2'-methylene-bis(6-tert-butyl-4-methylphenoxo))Yb(μ-OH)(THF)2]2 、 异氰酸苯酯 以 四氢呋喃 为溶剂， 以81%的产率得到[(2,2'-methylene-bis(6-tert-butyl-4-methylphenoxo))Yb(μ-η1:η2-O2CNHPh)(THF)2]2
  参考文献：
  名称：

  Synthesis, reactivity and structural characterization of lanthanide hydroxides stabilized by a carbon-bridged bis(phenolate) ligand

  摘要：

  The synthesis of lanthanide hydroxo complexes stabilized by a carbon-bridged bis(phenolate) ligand 2,2'-methylene-bis(6-tert-butyl-4-methylphenoxo) (MBMP2-) was described, and their reactivity toward phenyl isocyanate was explored. Reactions of (MBMP)Ln(C5H5)(THF)(2) with a molar equiv. of water in THF at -78 degrees C afforded the bis(phenolate) lanthanide hydroxides as dimers [{(MBMP)Ln(mu-OH)(THF)(2)}(2)] [Ln = Nd (1), Yb (2)] in high yields. Complexes 1 and 2 reacted with phenyl isocyanate in THF, after workup, to give the desired O-H addition products, [(MBMP)Ln(mu-eta(1):eta(2)-O2CNHPh)(THF)(2)](2) [Ln = Nd (3), Yb (4)] in excellent isolated yields. These complexes were well characterized, and the molecular structures of complexes 2 to 4 were determined by X-ray crystallography. The ytterbium atom in complex 2 is coordinated to six oxygen atoms to form a distorted octahedral geometry, whereas each metal center in complexes 3 and 4 is seven-coordinated, and the coordination geometry can be best described as a distorted pentagonal bipyramid. (C) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2008.11.031