2-Benzoxazolyl-6-[1-(arylimino)ethyl]pyridyliron(II) Chlorides as Ethylene Oligomerization Catalysts

Gao, Rong, Li, Yan, Wang, Fosong, Sun, Wen-Hua and Bochmann, Manfred (2009) 2-Benzoxazolyl-6-[1-(arylimino)ethyl]pyridyliron(II) Chlorides as Ethylene Oligomerization Catalysts. European Journal of Inorganic Chemistry, 2009 (27). pp. 4149-4156.

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Abstract

A series of iron(II) dichloride complexes (Fe 1 –Fe 7 ) ligated by 2-(2-benzoxazolyl)-6-[1-(arylimino)ethyl]pyridines was synthesized and characterized [aryl = 2,6-R12C6H3; R1 = Me ( 1 ), Et ( 2 ), iPr ( 3 ), Cl ( 4 ), Br ( 5 ); 2,6-Me2C6H2-4-R2, R2 = Me ( 6 ), Br ( 7 )]. The molecular structures of Fe 1 , Fe 3 , and Fe 5 were determined by the single-crystal X-ray diffraction. Complexes Fe 1 and Fe 3 both display distorted trigonal-bipyramidal geometries, whereas complex Fe 5 is a distorted square pyramid. Upon activation with modified methylaluminoxane, all iron complexes showed moderate to good activities [up to ca. 106 g(product)?×?(mol Fe)–1 h–1?bar–1] for the oligomerization and polymerization of ethylene, with high selectivity for vinyl-terminated oligomers or polyethylene waxes.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 12 Apr 2011 13:41
Last Modified: 20 Sep 2020 23:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/29050
DOI: 10.1002/ejic.200900491

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