Structural characterization of a methylaluminoxane (MAO)-magnesium dichloride cluster: model of MAO grafted onto a MgCl2 support.
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[Al3(mu3-O)(Me)5]2+ moiety can be trapped by the tetrapodal [Mg3Cl4(thffo)4(THF)]2- macrounit to form a cluster [Al3Mg3(mu3-O)(thffo)4(Me)5Cl4(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 Al3(mu3-O) core.
John
Lukasz
L
Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland.
Utko
Józef
J
Jerzykiewicz
Lucjan B
LB
Sobota
Piotr
P