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

Gao Rong | Zendy; Li Yan | Zendy; Wang Fosong | Zendy; Sun WenHua | Zendy; Bochmann Manfred | Zendy

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

Author(s) -

Gao Rong,

Li Yan,

Wang Fosong,

Sun WenHua,

Bochmann Manfred

Publication year - 2009

Publication title -

european journal of inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.667

H-Index - 136

eISSN - 1099-0682

pISSN - 1434-1948

DOI - 10.1002/ejic.200900491

Subject(s) - chemistry , methylaluminoxane , ethylene , catalysis , trigonal bipyramidal molecular geometry , polymer chemistry , selectivity , medicinal chemistry , polymerization , square pyramid , crystal structure , crystallography , organic chemistry , polymer , metallocene

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‐R 1 2 C 6 H 3 ; R 1 = Me ( 1 ), Et ( 2 ), i Pr ( 3 ), Cl ( 4 ), Br ( 5 ); 2,6‐Me 2 C 6 H 2 ‐4‐R 2 , R 2 = 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. 10 6 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.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

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