2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]-pyridylcobalt(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior

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	2-[1-(2,6-Dibenzhydryl-4-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]-pyridylcobalt(II) dichlorides: Synthesis, characterization and ethylene polymerization behavior
	Yu JG(余建刚) ; Huang W(黄伟) ; Wang L(王林) ; Carl Redshaw ; Sun WH(孙文华)
刊名	Dalton Trans.
	2011
卷号	40 页码:10209-10214
ISSN号	1477-9226
通讯作者	孙文华
中文摘要	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.
学科主题	物理化学
收录类别	SCI
资助信息	MOST 863 program No. 2009AA034601;The EPSRC are thanked for the awarded travel grant (to C. R.).
语种	英语
WOS记录号	WOS:000295843100031
公开日期	2012-09-20
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/370]
专题	兰州化学物理研究所_OSSO国家重点实验室
推荐引用方式 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.