2-Substituted 8-(2-benzhydrylarylimino)-5,6,7-trihydroquinoline-N,N′ nickel dichlorides: Synthesis, characterization and catalytic behavior towards ethylene

Hou, Xiaohua; Liang, Tongling; Sun, Wen Hua; Redshaw, Carl; Chen, Xia

Abstract

A series of 2-substituted 8-(2-benzhydrylarylimino)-5,6,7- trihydroquinolines (L) was synthesized and fully characterized, and their nickel chloride complexes, namely 2-substituted 8-(2-benzhydrylarylimino)-5,6,7- trihydroquinoline-N,N′ nickel dichlorides (LNiCl 2), were prepared and characterized by FT-IR and elemental analysis. The structures of representative complexes were confirmed by single crystal X-ray crystallography, which revealed a distorted trigonal bipyramidal geometry at the metal for complexes Ni3 and Ni5 containing an additional solvent molecule, and a distorted tetrahedral geometry for the complex Ni8. Upon activation with methylaluminoxane (MAO), all nickel pre-catalysts showed good activity for ethylene polymerization and considerable activity for ethylene oligomerization.

Citation

Hou, X., Liang, T., Sun, W. H., Redshaw, C., & Chen, X. (2012). 2-Substituted 8-(2-benzhydrylarylimino)-5,6,7-trihydroquinoline-N,N′ nickel dichlorides: Synthesis, characterization and catalytic behavior towards ethylene. Journal of organometallic chemistry, 708-709, 98-105. https://doi.org/10.1016/j.jorganchem.2012.02.031

• Journal Article Type: Article
• Acceptance Date: Feb 22, 2012
• Online Publication Date: Mar 3, 2012
• Publication Date: Jun 15, 2012
• Deposit Date: Jun 8, 2022
• Journal: Journal of Organometallic Chemistry
• Print ISSN: 0022-328X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 708-709
• Pages: 98-105
• DOI: https://doi.org/10.1016/j.jorganchem.2012.02.031
• Keywords: 2-Substituted 8-(2-benzhydrylarylimino)-5,6,7-trihydroquinoline-N,N′ nickel dichloride; Distorted trigonal bipyramidal geometry; Distorted tetrahedral geometry; Ethylene polymerization; Ethylene oligomerization
• Public URL: https://hull-repository.worktribe.com/output/3622236