Halogen-Substituted 2,6-Bis(imino)pyridyl Iron and Cobalt Complexes: Highly Active Catalysts for Polymerization and Oligomerization of Ethylene
作者:Yaofeng Chen、Ruifang Chen、Changtao Qian、Xicheng Dong、Jie Sun
DOI:10.1021/om0302894
日期:2003.10.1
analyses indicate that 1, 8, 9, and 10 are five-coordinate complexes, while 11 is an ion-pair complex with one six-coordinate iron center and one four-coordinate iron center. These metal coordinative complexes, activated by modified methylaluminoxane (MMAO), lead to highly active ethylene polymerization and/or oligomerization catalysts. The catalyst productivity and product properties crucially depended
一系列卤素取代的2,6-双(亚氨基)吡啶基配体及其铁和钴配合物[2,6-(2,6-X 1 X 2 C 6 H 3 N CCH 3)2 C 5 H 3 N} MCl 2 ](X 1 = X 2 = Br,M = Fe(1),Co(2); X 1 = X 2 = Cl,M = Fe(3),Co(4); X 1 = Cl ,X 2 = H,M = Fe(5),Co(6); X 1 = Br,X2 = H,M = Fe(7),Co(8);X 1 = I,X 2 = H,M = Fe(9),Co(10))和[M 2,6-(2,6-X 1 X 2 C 6 H 3 N CCH 3)2 C 5 ħ 3 N} 2 ] 2+ [的MC1 4 ] 2 -(X 1 = F,X 2 = H,M = Fe(上11))已经被合成。配合物的分子结构1,8,9,10,和11是由X射线衍射测定。结晶分析表明,1,8,9,