Synthesis, characterization, and butadiene polymerization of iron(III), iron(II) and cobalt(II) chlorides bearing 2,6-bis(2-benzimidazolyl)pyridyl or 2,6-bis(pyrazol)pyridine ligand

	Synthesis, characterization, and butadiene polymerization of iron(III), iron(II) and cobalt(II) chlorides bearing 2,6-bis(2-benzimidazolyl)pyridyl or 2,6-bis(pyrazol)pyridine ligand
	Gong DR ; Jia XY ; Wang BL ; Zhang XQ ; Jiang LS
刊名	journal of organometallic chemistry
	2012
卷号	702 页码:10-18
关键词	BIS(IMINO)ARYL NCN LIGAND 1 LINEAR ALPHA-OLEFINS 3-DIENE POLYMERIZATION CO-BASED CATALYST STEREOSPECIFIC POLYMERIZATIONS ETHYLENE OLIGOMERIZATION LIVING POLYMERIZATION DIENE POLYMERIZATION CONJUGATED DIENES PHOSPHINE LIGAND
ISSN号	0022-328x
通讯作者	zhang xq
中文摘要	iron(iii), iron(ii) and cobalt(ii) complexes bearing neutral n,n,n-tridentate ligand (fe(iii)l1, 1a; fe(iii)l2, 1b; fe(iii)l3, 1c; fe(iii)l4, 2a; fe(iii)l5, 2b; fe(iii)l6, 2c; fe(ii)l1, 3a; fe(ii)l2, 3b; fe(ii)l3, 3c; fe(ii)l4, 4a; fe(ii)l5, 4b; fe(ii)l6, 4c; col1, 5a; col2, 5b; col3, 5c; col5, 6b and col6, 6c) have been synthesized from the metal chlorides (fecl3, fecl2 center dot 4h(2)o or cocl2) by treating the corresponding ligands (2,6-bis(benzimidazol-2-yl)pyridine, l1; 2,6-bis(1'-ethylbenzimidazol-2'-yl)pyridine, l2; 2,6-bis( 1'-benzylbenzimidazol-2'-yl) pyridine, l3; 2,6-bis(pyrazol) pyridine l4; 2,6-bis(3-methylpyrazol) pyridine, l5 or 2,6-bis(3,5-dimethylpyrazol) pyridine, l6. the complexes are characterized by ftir and elemental analyses. the structures of complexes 1a, 1b, 3a, 3b, 3c, 4a, 5a, 5b, 5c and 6c are further confirmed by x-ray crystallographic analyses. six coordination iron(iii) (1a, 1b and 1c) and iron(ii) (3c*dmf) complexes adopt a distorted octahedral configuration with the equatorial plane formed by the three nitrogen atoms and one chlorine atom, while the iron(ii) (3a, 3b and 4a) and cobalt complexes (5a, 5b, 5c and 6c) adopt a trigonal bipyramidal configuration with the equatorial plane formed by the pyridyl nitrogen atoms and the two chlorine atoms. all complexes are evaluated as precursors for 1,3-butadiene polymerization in the presence of cocatalyst in toluene at room temperature. iron(iii) and iron(ii) bearing the same ligand show comparable catalytic performance. the catalytic activity and selectivity are significantly influenced by the ligand structure, with the latter being tunable within a wide range from cis-1,4 to trans-1,4. cobalt complexes, in combination with either mao or aluminum chlorides shown high activity, and high cis-1,4-selectivity irrespective of the structure of ligand backbone. (c) 2012 published by elsevier b. v.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000300190200002
公开日期	2013-06-03
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48260]
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	Gong DR,Jia XY,Wang BL,et al. Synthesis, characterization, and butadiene polymerization of iron(III), iron(II) and cobalt(II) chlorides bearing 2,6-bis(2-benzimidazolyl)pyridyl or 2,6-bis(pyrazol)pyridine ligand[J]. journal of organometallic chemistry,2012,702:10-18.
APA	Gong DR,Jia XY,Wang BL,Zhang XQ,&Jiang LS.(2012).Synthesis, characterization, and butadiene polymerization of iron(III), iron(II) and cobalt(II) chlorides bearing 2,6-bis(2-benzimidazolyl)pyridyl or 2,6-bis(pyrazol)pyridine ligand.journal of organometallic chemistry,702,10-18.
MLA	Gong DR,et al."Synthesis, characterization, and butadiene polymerization of iron(III), iron(II) and cobalt(II) chlorides bearing 2,6-bis(2-benzimidazolyl)pyridyl or 2,6-bis(pyrazol)pyridine ligand".journal of organometallic chemistry 702(2012):10-18.