2-(1-Aryliminoethylidene)quinolylnickel(II) dibromides: Synthesis, characterization and ethylene dimerization capability

Song, Shengju; Li, Yan; Redshaw, Carl; Wang, Fosong; Sun, Wen Hua

Abstract

A series of 2-(1-aryliminoethylidene)quinoline derivatives (L1-L9) and the nickel(II) dibromides (C1-C9) thereof, were synthesized and characterized. The molecular structures of C2 (R1 = Et, R2 = H, R = Me) and C9 (R1 = iPr, R2 = H, R = iPr) were confirmed as being distorted tetrahedral at nickel by single crystal X-ray diffraction. On treatment with diethylaluminium chloride (Et2AlCl) or ethylaluminum sesquichloride (EASC), these nickel pre-catalysts exhibited high activity for selective ethylene dimerization (0.89-3.29 × 106 g mol-1(Ni) h-1) at 20 °C under 10 atm of ethylene. The influence of the reaction parameters on the catalytic behaviour was investigated for these nickel systems, including variation of Al/Ni molar ratio and reaction temperature. © 2011 Elsevier B.V. All rights reserved.

Citation

Song, S., Li, Y., Redshaw, C., Wang, F., & Sun, W. H. (2011). 2-(1-Aryliminoethylidene)quinolylnickel(II) dibromides: Synthesis, characterization and ethylene dimerization capability. Journal of organometallic chemistry, 696(23), 3772-3778. https://doi.org/10.1016/j.jorganchem.2011.08.037

• Journal Article Type: Article
• Acceptance Date: Aug 25, 2011
• Online Publication Date: Sep 1, 2011
• Publication Date: Nov 15, 2011
• Deposit Date: Jun 8, 2022
• Journal: Journal of Organometallic Chemistry
• Print ISSN: 0022-328X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 696
• Issue: 23
• Pages: 3772-3778
• DOI: https://doi.org/10.1016/j.jorganchem.2011.08.037
• Keywords: Ethylene dimerization; Nickel pre-catalyst; X-ray diffraction; 2-(1-Aryliminoethylidene)quinoline
• Public URL: https://hull-repository.worktribe.com/output/3622351