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E-Journal of Chemistry
Volume 2, Issue 3, Pages 178-181

Cobalt and Nickel Complexes Bearing 2-(2-pyridyl)-Benzimidazole: Synthesis and Ethylene Oligomerization

Jian-Long Du and Li-Jun-Li

College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China

Received 10 May 2005; Accepted 31 May 2005

Copyright © 2005 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A series of cobalt and nickel complexes MLX2 (M=Co or Ni, X=Cl) bearing 2-(2-pyridyl)benzimidazole ligands were synthesized. Treatment of the complexes with methylaluminoxane (MAO) leads to active catalysts for ethylene oligomerization. The oligomers were olefins from C2 to C6.