Synthesis of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes and their catalytic behavior for 1,3-butadiene polymerization

	Synthesis of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes and their catalytic behavior for 1,3-butadiene polymerization
	Liu H ; Jia XY ; Wang F ; Dai QQ ; Wang BL ; Bi JF ; Zhang CY ; Zhao LP ; Bai CX ; Hu YM ; Zhang XQ
刊名	dalton transactions
	2013
卷号	42 期号:37 页码:13723-13732
关键词	HIGH-TEMPERATURE CATALYSTS LINEAR ALPHA-OLEFINS ETHYLENE POLYMERIZATION IRON COMPLEXES BUTADIENE POLYMERIZATION DIENE POLYMERIZATION CONJUGATED DIENES ACTIVE CATALYSTS MOLECULAR-WEIGHT METAL-CATALYSTS
ISSN号	1477-9226
通讯作者	hu ym
中文摘要	a new family of bis(n-arylcarboximidoylchloride) pyridine cobalt(ii) complexes with the general formula [2,6-(arn=ccl)(2)c5h3n]cocl2 (ar = 2,4,6-me3c6h2, 4a; 2,6-(pr2c6h3)-pr-i, 4b; 2,6-me2c6h3, 4c; c6h5, 4d; 4-cl-2,6-me2c6h2, 4e) and a typical brookhart-gibson-type reference complex [2,6-(2,4,6-me3c6h2n=cme)(2)c5h3n]cocl2 (5a) were synthesized and characterized. determined by x-ray crystallographic analysis, complexes 4a, 4c-e, and 5a adopted a trigonal bipyramidal configuration, and 4b adopted a distorted square pyramidal geometry. in combination with ethylaluminum sesquichloride (easc), all the complexes were highly active towards 1,3-butadiene polymerization, affording polybutadiene with predominant cis-1,4 content (up to 96%). 4a with chlorine atoms at the imine groups exhibited higher catalytic activity than did 5a, indicating that the incorporation of chlorine atoms into the ligand improves the activity. the activity of the complexes in 1,3-butadiene polymerization was in the order of 4a > 4c similar to 4e similar to 4b > 4d, which is consistent with the trend of spatial opening degree around the metal center in the complexes as revealed by crystallographic data. screening polymerization conditions proved that easc was the most efficient among the cocatalysts examined.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000323759600057
公开日期	2014-04-16
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/50204]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Liu H,Jia XY,Wang F,et al. Synthesis of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes and their catalytic behavior for 1,3-butadiene polymerization[J]. dalton transactions,2013,42(37):13723-13732.
APA	Liu H.,Jia XY.,Wang F.,Dai QQ.,Wang BL.,...&Zhang XQ.(2013).Synthesis of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes and their catalytic behavior for 1,3-butadiene polymerization.dalton transactions,42(37),13723-13732.
MLA	Liu H,et al."Synthesis of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes and their catalytic behavior for 1,3-butadiene polymerization".dalton transactions 42.37(2013):13723-13732.