ICCAS OpenIR
2-(1-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-methylphenylimino}ethyl)-6-[1-(arylimino)ethyl]pyridylcobalt dichlorides: Synthesis, characterization and ethylene polymerization behavior
Wang, Shaoli1,2; Zhao, Weizhen1,2; Hao, Xiang1,2; Li, Baixiang3; Redshaw, Carl4; Li, Yuesheng3; Sun, Wen-Hua1,2
2013-05-01
Source PublicationJOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN0022-328X
Volume731Pages:78-84
AbstractA series of 2-(1-[2,6-bis[bis(4-fluorophenyl)methyl]-4-methylphenyl-imino}ethyl)-6-[1-(arylimino)ethyl]pyridylcobalt(II) chloride complexes (Co1-Co5) was synthesized and characterized by FT-IR spectroscopy and elemental analysis. The molecular structures of the representative cobalt complexes Co1 (R-1 = Me, R-2 = H), Co4 (R-1 = Me, R-2 = Me) and Co5 (R-1 = Et, R-2 = Me) were determined by single crystal X-ray diffraction, and revealed a pseudo-square-pyramidal geometry at cobalt. Upon activation with either MMAO or MAO, all cobalt complex pre-catalysts exhibited high activities [up to the range of 10(7) g of PE (mol of Co)(-1) h(-1)] toward ethylene polymerization. The influence of reaction parameters and the nature of the ligands were investigated in detail on the catalytic activities of the corresponding complexes and properties of the resultant polyethylene. The cobalt system revealed single-site behavior and produced polyethylene with narrow molecular distribution. Compared to the use of MAO, the use of MMAO produced polyethylene of higher molecular weight. (C) 2013 Elsevier B.V. All rights reserved.
KeywordUnsymmetrical Bis(Imino)Pyridine Cobalt Pre-catalyst Ethylene Polymerization
DOI10.1016/j.jorganchem.2013.02.016
Indexed BySCI
Language英语
WOS IDWOS:000318319300012
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:26[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/42071
Collection中国科学院化学研究所
Corresponding AuthorRedshaw, Carl
Affiliation1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
4.Univ Hull, Dept Chem, Kingston Upon Hull HU6 7RX, N Humberside, England
Recommended Citation
GB/T 7714
Wang, Shaoli,Zhao, Weizhen,Hao, Xiang,et al. 2-(1-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-methylphenylimino}ethyl)-6-[1-(arylimino)ethyl]pyridylcobalt dichlorides: Synthesis, characterization and ethylene polymerization behavior[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY,2013,731:78-84.
APA Wang, Shaoli.,Zhao, Weizhen.,Hao, Xiang.,Li, Baixiang.,Redshaw, Carl.,...&Sun, Wen-Hua.(2013).2-(1-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-methylphenylimino}ethyl)-6-[1-(arylimino)ethyl]pyridylcobalt dichlorides: Synthesis, characterization and ethylene polymerization behavior.JOURNAL OF ORGANOMETALLIC CHEMISTRY,731,78-84.
MLA Wang, Shaoli,et al."2-(1-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-methylphenylimino}ethyl)-6-[1-(arylimino)ethyl]pyridylcobalt dichlorides: Synthesis, characterization and ethylene polymerization behavior".JOURNAL OF ORGANOMETALLIC CHEMISTRY 731(2013):78-84.
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