A vanadium(V) complex with a tetradentate [OSSO]-type bis(phenolato) ligand: Synthesis, structure, and ethylene polymerization activity

被引：24
|
作者：
Meppelder, Geert-Jan M. [1 ]
Halbach, Tobias S. [2 ,3 ]
Spaniol, Thomas P. [1 ]
Muelhaupt, Rolf [2 ,3 ]
Okuda, Jun [1 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Inorgan Chem, D-52074 Aachen, Germany
[2] Univ Freiburg, Freiburg Mat Res Ctr, D-79104 Freiburg, Germany
[3] Univ Freiburg, Inst Macromol Chem, D-79104 Freiburg, Germany
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2009年 / 694卷 / 7-8期
关键词：
Vanadium; Chiral complex; Ethylene polymerization; Phenolato ligand; ISOSPECIFIC STYRENE POLYMERIZATION; TITANIUM COMPLEXES; COPOLYMERIZATION; CATALYSTS; SITE; HOMOPOLYMERIZATION; REACTIVITY; DISULFIDE; CHEMISTRY; CONTAIN;
D O I：
10.1016/j.jorganchem.2008.11.008
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Reaction of VOCl3 with racemic trans-1,2-dithiacyclohexanediyl-2,2'-bis(6-tert-butyl-4-methylphenol) affords the chiral-at-metal vanadium(V) complex [V{(C6H2O-6-tert-Bu-4-Me)(2)S2C6H10}OCl] (1). The molecular structure of 1 was established by single crystal X-ray diffraction, which shows a cis-alpha configuration of the ligand around the vanadium center. Upon activation with MAO, 1 was found to be a highly active catalyst for the polymerization of ethylene, but was not active in the polymerization of propene and styrene. The influence of temperature and cocatalyst ratio on polymerization activity was studied. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1235 / 1237
页数：3
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