η5-1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadienyl chromium dichloride dimer | 934008-00-1

• 英文名称: η5-1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadienyl chromium dichloride dimer
• CAS: 934008-00-1
• 化学式: C₃₂H₃₈Cl₄Cr₂O₂
• 分子量: 700.457
• InChiKey: XAFSBEMFWKWJEI-UHFFFAOYSA-J

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：

  1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadiene 、 三氯化铬 在 n-BuLi 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 以35.1%的产率得到η5-1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadienyl chromium dichloride dimer
  参考文献：
  名称：

  New o-methoxyphenylcyclopentadienylchromium (III) complexes: Synthesis, structures and catalytic properties for ethylene polymerization

  摘要：

  Two new ligands 1-(2-methoxyphenyl) -3,4-diphenylcyclopentadiene (1) and 1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadiene (2), as well as their corresponding cyclopentadienylchromium complexes eta(5)-1-(2-methoxyphenyl)-3,4-diphenylcyclopentadienyl chromium dichloride (3) and eta(5)-1-(2-methoxyphenyl)-2,3,4,5-tetramethylcyclopentadienyI chromium dichloride (4) were synthesized and characterized. Molecular structures of 3 and 4 were determined by single-crystal X-ray diffraction. Complexes 3 and 4 were tested as catalyst precursors for ethylene polymerization. When activated with Al(Bu-i)(3) and Ph3C+B(C6F5)(4)(-), complex 3 shows reasonable catalytic activity while 4 exhibits high catalytic activity for ethylene polymerization. The effects of temperature and Al/Cr ratio on the catalytic activity were studied. The molecular weight and melting temperature of the produced polyethylenes were determined. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2006.11.047