Iron(II) and cobalt(II) complexes bearing 8-(1-aryliminoethylidene) quinaldines: Synthesis, characterization and ethylene dimerization behavior

Song, Shengju; Xiao, Tianpengfei; Redshaw, Carl; Hao, Xiang; Wang, Fosong; Sun, Wen Hua

Abstract

The series of bidentate N^N iron(II) and cobalt(II) complexes containing 8-(1-aryliminoethylidene) quinaldine derived ligands, 8-[2,6-(R 1)2-4-R2-C6H2NC (Me)]-2-Me-C10H5N, were synthesized and characterized by elemental and spectroscopic techniques. The molecular structures of Co1 (R 1 = Me, R2 = H), Co3 (R1 = iPr, R2 = H) and Co4 (R1 = R2 = Me) were confirmed as the distorted tetrahedral by single crystal X-ray diffraction. On treatment with modified methylaluminoxane (MMAO), these complexes exhibited good catalytic activities of up to 5.71 × 105 g mol-1(Fe) h -1 for the ethylene dimerization at 30 °C under 10 atm of ethylene, in which iron pre-catalysts produced butenes with a high selectivity for α-butene. The correlation between metal complexes, catalytic activities and the product formed were investigated under various reaction parameters. © 2011 Elsevier B.V. All rights reserved.

Citation

Song, S., Xiao, T., Redshaw, C., Hao, X., Wang, F., & Sun, W. H. (2011). Iron(II) and cobalt(II) complexes bearing 8-(1-aryliminoethylidene) quinaldines: Synthesis, characterization and ethylene dimerization behavior. Journal of organometallic chemistry, 696(13), 2594-2599. https://doi.org/10.1016/j.jorganchem.2011.03.039

• Journal Article Type: Article
• Acceptance Date: Mar 29, 2011
• Online Publication Date: Apr 7, 2011
• Publication Date: Jul 1, 2011
• Deposit Date: Jun 8, 2022
• Journal: Journal of Organometallic Chemistry
• Print ISSN: 0022-328X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 696
• Issue: 13
• Pages: 2594-2599
• DOI: https://doi.org/10.1016/j.jorganchem.2011.03.039
• Public URL: https://hull-repository.worktribe.com/output/3622423