Silicon-carbon bridged bis(fluorenyl) and bis(octahydrofluorenyl) ansa-zirconocenes: synthesis, characterization and ethylene polymerization catalysis

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Leino R, Luttikhedde HJG, Lehtonen A, Wilen CE, Nasman JH
Förläggare: ELSEVIER SCIENCE SA
Publiceringsår: 1997
Tidskrift: Journal of Organometallic Chemistry
Tidskriftsakronym: J ORGANOMET CHEM
Volym: 545-546
Artikelns första sida, sidnummer: 219
Artikelns sista sida, sidnummer: 224
Antal sidor: 6
ISSN: 0022-328X


Abstrakt

The synthesis and characterization of two new silicon-carbon bridged ansa-bis(fluorenyl) and ansa-bis(octahydrofluorenyl) zirconocene complexes, (Flu-CH(2)-SiMe(2)-Flu)ZrCl(2) (3) and (FluH(8)-CH(2)-SiMe(2)-FluH(8))ZrCl(2) (4) is reported. Complex 3, in combination with methylaluminoxane (MAO), forms an active catalyst system for homogeneous polymerization of ethylene. The molecular structure of 4 reveals a large Centroid-Zr-Centroid angle (131.9 degrees) and an unusually small Cl-Zr-Cl angle (93.2 degrees). The Zr-C bond distances range from 2.48 to 2.64 Angstrom. (C) 1997 Elsevier Science S.A.


Nyckelord

ansa-metallocene, fluorenyl, olefin polymerization, zirconium

Senast uppdaterad 2019-16-10 vid 03:04