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Chromium(III) complexes ligated by 2-(1-isopropyl-2-benzimidazolyl)-6-(1-(arylimino)ethyl) pyridines: Synthesis, characterization and their ethylene oligomerization and polymerization
Chen, Yanjun1,2,3; Zuo, Weiwei1,2; Hao, Peng1,2; Zhang, Shu1,2; Gao, Kun3; Sun, Wen-Hua1,2,3
2008-02-15
Source PublicationJOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN0022-328X
Volume693Issue:4Pages:750-762
AbstractA series of chromium(III) complexes bearing 2-(1-isopropyl-2-benzimidazolyl)-6-(1-(arylimino)ethyl) pyridines were synthesized and characterized by IR spectroscopic and elemental analysis. The X-ray crystallographic analysis revealed a distorted octahedral geometry of the chromium complexes. When activated by Et(2)AlCl, MAO or MMAO, these chromium complexes exhibited catalytic activities for ethylene oligomerization and polymerization; while the good to high activities ( up to 3.95 x 10(6) g mol(-1) (Cr) h(-1)) were observed in the catalytic systems with MMAO. Therefore, various reaction parameters of the catalytic system with MMAO were investigated in detail. The steric and electronic effects of ligands affected the catalytic activities and the distribution of the products predominantly. Interestingly, sometimes their distributions of oligomers did not resemble the rules of Schulz-Flory or Poisson due to the hexenes produced in low yield. (c) 2007 Elsevier B. V. All rights reserved.
KeywordChromium Complexes 2-(Benzimidazolyl)-6-iminopyridine Ethylene Oligomerization Polymerization
DOI10.1016/j.jorganchem.2007.11.049
Indexed BySCI ; IC
Language英语
WOS IDWOS:000254409200020
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:48[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64386
Collection中国科学院化学研究所
Corresponding AuthorSun, Wen-Hua
Affiliation1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
3.Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Chen, Yanjun,Zuo, Weiwei,Hao, Peng,et al. Chromium(III) complexes ligated by 2-(1-isopropyl-2-benzimidazolyl)-6-(1-(arylimino)ethyl) pyridines: Synthesis, characterization and their ethylene oligomerization and polymerization[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY,2008,693(4):750-762.
APA Chen, Yanjun,Zuo, Weiwei,Hao, Peng,Zhang, Shu,Gao, Kun,&Sun, Wen-Hua.(2008).Chromium(III) complexes ligated by 2-(1-isopropyl-2-benzimidazolyl)-6-(1-(arylimino)ethyl) pyridines: Synthesis, characterization and their ethylene oligomerization and polymerization.JOURNAL OF ORGANOMETALLIC CHEMISTRY,693(4),750-762.
MLA Chen, Yanjun,et al."Chromium(III) complexes ligated by 2-(1-isopropyl-2-benzimidazolyl)-6-(1-(arylimino)ethyl) pyridines: Synthesis, characterization and their ethylene oligomerization and polymerization".JOURNAL OF ORGANOMETALLIC CHEMISTRY 693.4(2008):750-762.
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