Structural characterization of a methylaluminoxane (MAO)-magnesium dichloride cluster:: Model of MAO grafted onto a MgCl2 support

被引：20

作者：

John, L ^{[1
]}

Utko, J ^{[1
]}

Jerzykiewicz, LB ^{[1
]}

Sobota, P ^{[1
]}

机构：

[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

来源：

INORGANIC CHEMISTRY | 2005年 / 44卷 / 25期

关键词：

D O I：

10.1021/ic051441s

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The study outlines our initial results that contribute to a better understanding of MAO/MgCl2 (MAO = methylaluminoxane) incorporation in the Cp2ZrCl2/MAO/MgCl2 catalytic system, which is currently of global industrial use. We show here that the[Al-3(mu(3)-O)(Me)(5)](2+) moiety can be trapped by the tetrapodal [Mg3Cl4(thffo)(4)(THF)](2-) macrounit to form a cluster [Al3Mg3(mu(3)-O)(thffo)(4)(Me)(5)Cl-4(THF)] (thffo = 2-tetrahydrofurfuroxide). From this perspective, this macrounit might be considered as a part of the MgCl2 support surface, which fulfills the requirement of a Al-3(mu(3)-O) core.

引用

页码：9131 / 9133

页数：3

共 26 条

[1]

BAILLY JC, 1991, Patent No. 435514

[2] Mechanisms of propagation and termination reactions in classical heterogeneous Ziegler-Natta catalytic systems: A nonlocal density functional study [J].