DOI: 10.1039/A704499B
(Paper)
Reference Section for: Chem. Commun., 1997, 1905-1906
EXAFS analysis of a chiral alkene polymerisation catalyst incorporated in the mesoporous silicate MCM-41
(Note: The full text of this document is currently only available in the PDF Version )
Stephen O’Brien, Jonathan Tudor, Stephen O’Brien, Jonathan Tudor and Thomas Maschmeyer
Abstract
The chiral metallocene rac-ethylenebis(1-indenyl)zirconium dichloride, when immobilised on the surface of methylalumoxane-modified mesoporous silica MCM-41, is an effective catalyst for the production of highly isotactic polypropene with a unique spherulite morphology; Zr K-edge EXAFS studies of the organometallic–inorganic composite reveal not only an intact indenyl ligand framework after the immobilisation, but also the presence of a short Zr–C bond and the absence of the chloride ligands.
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