[dimethylsilanediylbis(2-methyl-4,6-diisopropylindenyl)]zirconium dichloride | 150952-63-9

• 英文名称: [dimethylsilanediylbis(2-methyl-4,6-diisopropylindenyl)]zirconium dichloride
• 英文别名: dimethylsilanediylbis(2-methyl-4,6-diisopropylindenyl)zirconium dichloride；meso-[Me2Si(2-Me-4,6-iPr2Ind)2]ZrCl2；meso-dimethylsilandiyl-bis(2-methyl-4,6-diisopropylindenyl)zirconium dichloride
• CAS: 150952-63-9；152881-64-6；159572-57-3
• 化学式: C₃₄H₄₆Cl₂SiZr
• 分子量: 644.955
• InChiKey: RMVKEAGXJAPDAK-UHFFFAOYSA-L

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：

  rac-dimethylsilandiyl-bis(2-methyl-4,6-diisopropylindenyl)zirconium dichloride 以 not given 为溶剂， 生成 [dimethylsilanediylbis(2-methyl-4,6-diisopropylindenyl)]zirconium dichloride
  参考文献：
  名称：

  桥联双（茚基）二氯化锆的光诱导rac / meso互变

  摘要：

  在一个C的照射2 -对称外消旋的异构体柄-zirconocene二氯化物，一个互变到C小号-对称内消旋-形式中观察到，直到达到两种非对映之间的光稳态。最终的rac /内消旋比例和互变速率取决于不同茂金属的结构。报道了分别由[Me 2 Si（2-Me-​​4,6- i Pr 2 Ind）2 ] ZrCl 2 rac和内消旋体以及甲基铝氧烷（MAO）催化的α-烯烃聚合反应的结果。在丙烯聚合中外消旋-非对映异构体显示出更高的活性，而在戊烯，己烯和辛烯聚合中，内消旋-异构体的活性明显更高。对于所有聚合物，使用内消旋-非对映异构体作为催化剂，发现分子量较低。

  DOI：

  10.1016/1381-1169(96)00240-3

文献信息

• Synthesis and molecular structures of zirconium and hafnium complexes bearing dimethylsilandiyl-bis-2,4,6-trimethylindenyl and dimethylsilandiyl-bis-2-methyl-4,6-diisopropylindenyl ligands
  作者：Vyacheslav V. Izmer、Denis A. Sorokin、Lyudmila G. Kuz’mina、Andrei V. Churakov、Judith A.K. Howard、Alexander Z. Voskoboynikov

  DOI：10.1016/j.jorganchem.2004.10.052

  日期：2005.2

  Zirconium and hafnium ansa-complexes containing 2,4,6-trialkyl-substituted indenyl fragments were synthesized and unambiguously characterized. Mixtures of rac- and meso-Me2Si(2-Me-4,6-R2C9H3-eta(5))(2)MCl2, where R = Me, i-Pr and M = Zr, Hf, were obtained by a treatment of MCl4 by dilithium salts of the respective bis(2,4,6-trialkylindenyl)dimethylsilanes in toluene. Alternatively, better yields of the same complexes can be obtained by the reaction between metal tetrachlorides and indenyl-tin derivatives gave the desired ansa-metallocenes. All rac- and meso-complexes of Zr and Hf were isolated in an analytically pure form, and six of these ansa-metallocenes were characterized by X-ray crystal structure analysis. (C) 2004 Elsevier B.V. All rights reserved.
• ANSA-METALLOCENE COMPOUND AND METHOD FOR PREPARING SUPPORTED CATALYST USING SAME
  申请人：LG CHEM, LTD.

  公开号：EP2824107B1

  公开（公告）日：2017-01-18