Zirconium Complex of an [OSSO]-Type Diphenolate Ligand Bearing trans-1,2-Cyclooctanediylbis(thio) Core: Synthesis, Structure, and Isospecific 1-Hexene Polymerization
Zirconium Complex of an [OSSO]-Type Diphenolate Ligand Bearing trans-1,2-Cyclooctanediylbis(thio) Core: Synthesis, Structure, and Isospecific 1-Hexene Polymerization
复制标题
DOI：
10.1021/ja903369q
复制
发表时间：
2009-09-30
影响因子：
15
通讯作者：
Matsuo, Tsukasa
中科院分区：
文献类型：
--
作者：
Ishii, Akihiko;Toda, Tomoyuki;Matsuo, Tsukasa
合成了一个含[OSSO]型四齿配体的六配位二苄基锆配合物，并用NMR和X射线衍射对其结构进行了表征。锆配合物在溶液中具有C（2）对称性。由于环辛烷环结构的影响，锆络合物和作为活化剂的B（C（6）F（5））（3）或（Ph（3）C）[B（C（6）F（5））（4）]的组合对1-己烯的聚合显示出高活性，从而产生高度全同立构的聚（1-己烯）。
Six-coordinated dibenzyl Zr complex bearing an [OSSO]-type tetradentate ligand was synthesized, and the structure was fully characterized by NMR spectroscopy and X-ray crystallography. The zirconium complex has C(2) symmetry in solution. Owing to an effect of the cyclooctane ring structure, the combination of the zirconium complex and B(C(6)F(5))(3) or (Ph(3)C)[B(C(6)F(5))(4)] as the activator exhibited high activity toward polymerization of 1-hexene to yield highly isotactic poly(1-hexene).