TY - JOUR
T1 - 2-Benzoxazolyl-6-[1-(arylimino)ethyl]pyridyliron(II) chlorides as ethylene oligomerization catalysts
AU - Gao, Rong
AU - Li, Yan
AU - Wang, Fosong
AU - Sun, Wen-Hua
AU - Bochmann, Manfred
PY - 2009
Y1 - 2009
N2 - A series of iron(II) dichloride complexes (Fe1–Fe7) 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 Fe1, Fe3, and Fe5 were determined by the single-crystal X-ray diffraction. Complexes Fe1 and Fe3 both display distorted trigonal-bipyramidal geometries, whereas complex Fe5 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.
AB - A series of iron(II) dichloride complexes (Fe1–Fe7) 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 Fe1, Fe3, and Fe5 were determined by the single-crystal X-ray diffraction. Complexes Fe1 and Fe3 both display distorted trigonal-bipyramidal geometries, whereas complex Fe5 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.
U2 - 10.1002/ejic.200900491
DO - 10.1002/ejic.200900491
M3 - Article
VL - 2009
SP - 4149
EP - 4156
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
SN - 1434-1948
IS - 27
ER -