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Synthesis and Crystal Structure of [1‐(η 5 ‐9‐Fluorenyl)‐2‐(η 5 ‐1‐indenyl)ethane]hafnium Dimethyl
Author(s) -
Jany Gerhard,
Repo Timo,
Gustafsson Marina,
Klinga Martti,
AbuSurrah Adnan S.,
Leskelä Markku
Publication year - 2000
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200009)626:9<1897::aid-zaac1897>3.0.co;2-t
Subject(s) - monoclinic crystal system , crystallography , chemistry , stereochemistry , polymerization , crystal structure , polymer , organic chemistry
The synthesis and characterization of the unsymmetric hafnium dialkyl [1‐(η 5 ‐9‐fluorenyl)‐2‐(η 5 ‐1‐indenyl)ethane]HfCl 2 ( 2 ) and corresponding dimethyl complex [1‐(η 5 ‐9‐fluorenyl)‐2‐(η 5 ‐1‐indenyl)ethane]Hf(CH 3 ) 2 ( 3 ) is described. The dialkyl hafnocene ( 3 ) crystallizes in monoclinic space group P2 1 /c (No. 14) with a = 9.458(8), b = 8.541(8), c = 23.733(11) Å, β = 93.16(5) deg., V = 1914(3) Å 3 , Z = 4. Further on, complex 3 was activated with methylaluminiumoxane (MAO) and utilized as a catalyst in ethene polymerization.