Synthesis, characterization and ethylene polymerization behavior of nickel dihalide complexes bearing bulky unsymmetrical α-diimine ligands

Liu, Hao; Zhao, Weizhen; Yu, Jiangang; Yang, Wenhong; Hao, Xiang; Redshaw, Carl; Chen, Langqiu; Sun, Wen Hua

Abstract

A series of nickel(ii) dihalide complexes (C1-C10) bearing unsymmetrical α-diimine ligands of the type 2,4-dibenzhydryl-N-(2- phenyliminoacenaphthylenylidene)-6-methylbenzenamine (L1-L5) were synthesized and fully characterized. Single-crystal X-ray diffraction revealed a distorted tetrahedral geometry around the nickel center in the complexes C3, C5 and C9. Upon activation with modified methylaluminoxane (MMAO), all nickel pro-catalysts performed with high activities in ethylene polymerization, producing highly branched polyethylene products.

Citation

Liu, H., Zhao, W., Yu, J., Yang, W., Hao, X., Redshaw, C., Chen, L., & Sun, W. H. (2012). Synthesis, characterization and ethylene polymerization behavior of nickel dihalide complexes bearing bulky unsymmetrical α-diimine ligands. Catalysis science & technology, 2012(2), 415-422. https://doi.org/10.1039/c1cy00319d

• Journal Article Type: Article
• Acceptance Date: Oct 25, 2011
• Online Publication Date: Dec 1, 2011
• Publication Date: Feb 1, 2012
• Deposit Date: Jun 8, 2022
• Journal: Catalysis Science and Technology
• Print ISSN: 2044-4753
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 2012
• Issue: 2
• Pages: 415-422
• DOI: https://doi.org/10.1039/c1cy00319d
• Public URL: https://hull-repository.worktribe.com/output/3622289