μ-C12H8[[SiPh(indenyl)2]ZrCl2]2 | 214079-72-8

• 英文名称: μ-C12H8[[SiPh(indenyl)2]ZrCl2]2
• CAS: 214079-72-8
• 化学式: C₆₀H₄₂Cl₄Si₂Zr₂
• 分子量: 1143.42
• InChiKey: AGPJPHRSYBSFCT-UHFFFAOYSA-J

反应信息

• 作为产物：
  描述：

  、 以 四氢呋喃 为溶剂， 以51.8%的产率得到μ-C12H8[[SiPh(indenyl)2]ZrCl2]2
  参考文献：
  名称：

  Synthesis of a dinuclear ansa-zirconocene catalyst having a biphenyl bridge and application to ethene polymerization

  摘要：

  A novel dinuclear ansa-zirconocene catalyst (mu-C12H8{[SiPh(Ind)(2)]ZTCl(2)}(2)) (I) was prepared by a Wurtz coupling reaction between two equivalent of bisindenylphenylchlorosilane and one equivalent of 4,4'-dibromobiphenyl in THF at reflux temperature for 12 h, followed by a successive reaction with ZrCl4 . 2THF in THF at -78 degrees C. Polymerization of ethene was conducted in a 300 cm(3) glass reactor equipped with a stirrer at 40, 60, 80 and 100 degrees C using MAO or Ph3C[B(C6F5)(4)] as cocatalyst and toluene as the solvent. The catalyst (I) gave linear polyethene with a broader molecular mass distribution (MMD) in a much higher yield as compared to the corresponding mononuclear catalyst derived from [Ph2Si(Ind)(2)]ZrCl2 (II). The apparent activity increased monotonously from 40 degrees C up to 100 degrees C. The replacement of MAO with Ph3C[B6F5)(4)] gave polyethene with a higher molecular weight. (C) 1998 Elsevier Science B.V.

  DOI：

  10.1016/s1381-1169(97)00180-5