Journal of organometallic chemistry

Synthese, Charakterisierung und Polymerisationseigenschaften verbrückter Halbsandwichkomplexe des Titans, Zirconiums und Hafniums; Die Molekülstruktur von [C …

HG Alt, K Föttinger, W Milius

Index: Alt, Helmut G.; Foettinger, Klaus; Milius, Wolfgang Journal of Organometallic Chemistry, 1999 , vol. 572, # 1 p. 21 - 30

Full Text: HTML

Citation Number: 62

Abstract

The synthesis of new ansa halfsandwich complexes of the type [Cp#-SiMe2-NtBu] MCl2 (Cp#= C13H8, C9H6, C5H4, C5H3tBu; M= Zr, Hf) as catalyst precursors for the polymerization of ethylene is described. The complexes were characterized by 1H-, 13C-, 29Si-, 15N-and 14N-NMR spectroscopy. From [C13H8-SiMe2-NtBu] ZrCl2 an X-ray structure was obtained. The activities of the catalysts and the properties of the polymers were ...