New titanatranes: Characterization and styrene polymerization behavior

New titanatranes containing cyclopentadienyl ligands were prepared by the reactions of various kinds of trialkanolamines with (C5Me4R)TiCl3 (Cp' = C5Me4R) in the presence of triethylamine. The X-ray analyses reveal that they exist in the monomeric form in the solid state and the Ti atom adopts essentially an eta(5) bonding posture with the Cp' ring and a tetradentate bonding mode with the trialkanolatoamine ligand via a transannular interaction from the bridgehead N atom to Ti. All compounds show very high catalytic activity for the syndiospecific polymerization of styrene in the presence of modified methylaluminoxane (MMAO) cocatalyst.
Publisher
AMER CHEMICAL SOC
Issue Date
2002-03
Language
ENG
Keywords

TITANIUM COMPLEXES; STEREOSPECIFIC POLYMERIZATION; SYNDIOTACTIC POLYSTYRENE; CRYSTAL-STRUCTURES; LITHIUM AMIDES; CATALYST; REACTIVITY; COPOLYMERIZATION; AZATITANATRANES; ELEMENTS

Citation

ORGANOMETALLICS, v.21, no.6, pp.1127 - 1135

ISSN
0276-7333
URI
http://hdl.handle.net/10203/3628
Appears in Collection
CH-Journal Papers(저널논문)
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