| 2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]-pyridylcobalt(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior | |
| Department | 羰基合成与选择氧化国家重点实验室 |
| Yu JG(余建刚); Huang W(黄伟); Wang L(王林); Carl Redshaw; Sun WH(孙文华) | |
| 2011 | |
| Source Publication | Dalton Trans.
 |
| ISSN | 1477-9226 |
| Volume | 40Pages:10209-10214 |
| Abstract | A series of unsymmetrical 2,6-bis(imino)pyridylcobalt(II) complexes, {2-[2,6-(CH(C6H5)2)2-4-Me– C6H2N C(CH3)]-6-(2,6-R1 2-4-R2–C6H2N CCH3)–C5H3NCoCl2} where R1 = Me, Et or iPr, R2 = H or Me, together with the new symmetrical complex 2,6-[2,6-(CH(C6H5)2)2-4-Me–C6H2N C(CH3)]2– C5H3NCoCl2, were synthesized. All of the compounds were fully characterized by 1HNMRand IR spectroscopy, as well as by elemental analysis. The molecular structures of Co1 (R1 = Me, R2 = H) and Co5 (R1 = Et, R2 = Me) were further confirmed by single crystal X-ray diffraction, which indicated that the cobalt centres were penta-coordinate with a pseudo square-pyramidal geometry. Upon treatment with MAO or MMAO, these cobalt pre-catalysts exhibited higher activities than any previously reported cobalt pre-catalysts, with values as high as 4.64 ¥ 106 g PE mol-1(Co) h-1 for ethylene polymerization at atmospheric pressure. The polyethylenes obtained were of high molecular weight and narrow molecular weight distribution. |
| Subject Area | 物理化学 |
| Funding Organization | MOST 863 program No. 2009AA034601;The EPSRC are thanked for the awarded travel grant (to C. R.). |
| Indexed By | SCI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/370 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Sun WH(孙文华) |
| Recommended Citation GB/T 7714 | Yu JG,Huang W,Wang L,et al. 2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]-pyridylcobalt(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior[J]. Dalton Trans.,2011,40:10209-10214. |
| APA | 余建刚,黄伟,王林,Carl Redshaw,&孙文华.(2011).2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]-pyridylcobalt(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior.Dalton Trans.,40,10209-10214. |
| MLA | 余建刚,et al."2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]-pyridylcobalt(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior".Dalton Trans. 40(2011):10209-10214. |
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