Unverbrueckte fluorenylkomplexe des typs (C5H5)(9-R-C13H8)ZrCl2 (R = Me3Si, Alkyl, Aryl): Synthese, charakterisierung und anwendung als katalysatoren bei der homogenen olefinpolymerisation

Article abstract of DOI:10.1016/S0022-328X(96)06480-7

The reaction of various 9-substituted fluorene compounds (9-R-C₁₃H₉) (R = Me₃Si, alkyl, aryl) (1a-i) with butyllithium followed by treatment with (C₅H₅)ZrCl₃ leads to unbridged fluorenyl complexes of the type (C₅H₅)(9-R-C₁₃H₈)ZrCl₂ (2a-i). In combination with methylaluminoxane, complexes 2a-i show a high catalytic activity as homogeneous ethylene polymerization catalysts. Compounds 2c (R = ⁱPr), 2d (R = cyclohexyl), and 2e (R = ^tBu) were characterized by X-ray structure analyses.