Issue 2, 2012

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

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.

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

Supplementary files

Article information

Article type
Paper
Submitted
14 Aug 2011
Accepted
25 Oct 2011
First published
01 Dec 2011

Catal. Sci. Technol., 2012,2, 415-422

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

H. Liu, W. Zhao, J. Yu, W. Yang, X. Hao, C. Redshaw, L. Chen and W. Sun, Catal. Sci. Technol., 2012, 2, 415 DOI: 10.1039/C1CY00319D

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