Nine-Membered Titanacyclic Complexes Based on an Ethylene-Bridged Bis(phenolato) Ligand: Synthesis, Structure, and Olefin Polymerization Activity
journal contributionposted on 30.09.1997, 00:00 by Stefan Fokken, Thomas P. Spaniol, Jun Okuda, Fritz G. Sernetz, Rolf Mülhaupt
Tetravalent titanium complexes containing the ethylene-linked bis(phenolato) ligand ebmp exhibit a C2-symmetric conformation according to single-crystal X-ray structural analyses. In solution, a fluxional process equivalent to an enantiomerization is detected. Upon activation with methylaluminoxane, these complexes copolymerize ethylene and styrene with remarkably high incorporation of styrene.