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 and Sun, Wen-Hua (2011) Iron(II) And Cobalt(II) Complexes Bearing 8-(1-Aryliminoethylidene)Quinaldines: Synthesis, Characterization And Ethylene Dimerization Behavior. Journal of Organometallic Chemistry, 696 (13). pp. 2594-2599.

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Abstract

The series of bidentate N^N iron(II) and cobalt(II) complexes containing 8-(1-aryliminoethylidene)quinaldine derived ligands, 8-[2,6-(R1)2-4-R2-C6H2N=C (Me)]-2-Me-C10H5N, were synthesized and characterized by elemental and spectroscopic techniques. The molecular structures of Co1 (R1 = 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 a-butene. The correlation between metal complexes, catalytic activities and the product formed were investigated under various reaction parameters.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 11 Apr 2011 13:57
Last Modified: 21 Apr 2020 16:35
URI: https://ueaeprints.uea.ac.uk/id/eprint/28838
DOI: 10.1016/j.jorganchem.2011.03.039

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