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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

Authors

Shengju Song

Tianpengfei Xiao

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Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Xiang Hao

Fosong Wang

Wen Hua Sun



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