Reductive Decomposition of Cationic Half-Titanocene(IV) Complexes, Precursors of the Active Species in Syndiospecific Styrene Polymerization
Organometallics1996Vol. 15(2), pp. 480–482
Citations Over TimeTop 1% of 1996 papers
Abstract
Mixtures of Cp*TiR3 (with Cp* = C5(CH3)5 and R = CH3, 13CH3) and equimolar amounts of B(C6F5)3 or C(C6H5)3B(C6F5)4, active in the syndiospecific polymerization of styrene, have been investigated by means of ESR spectroscopy. At room temperature the formation of Cp*TiR+ complexes has been observed. Rapid insertion of styrene occurs in Ti−R bonds of these cationic Ti(III) complexes, strongly suggesting their role in the stereospecific polyinsertion.
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