Synthesis of vanadium(III) complexes bearing iminopyrrolyl ligands and their role as thermal robust ethylene (co)polymerization catalysts
文献类型：期刊论文
| 作者 | Mu JS ; Wang YX ; Li BX ; Li YS |
| 刊名 | dalton transactions
 |
| 出版日期 | 2011 |
| 卷号 | 40期号:14页码:3490-3497 |
| 关键词 | OLEFIN POLYMERIZATION BEHAVIOR O N TRANSITION-METAL-COMPLEXES N-CHELATING AMINOPHENOLATE N-CHELATE LIGANDS FOCK-SLATER CALCULATIONS STRUCTURAL-CHARACTERIZATION SALICYLALDIMINATO LIGANDS CHELATE LIGANDS ZIEGLER-NATTA IMINE LIGANDS |
| ISSN号 | 1477-9226 |
| 通讯作者 | li ys |
| 中文摘要 | bis(imino) pyrrolyl vanadium(iii) complexes 2a-e [2,5-c(4)h(2)n(ch=nr)(2)]vcl(2)(thf)(2) [r = c(6)h(5) (2a), 2,6-me(2)c(6)h(3) (2b), 2,6-(i)pr(2)c(6)h(3) (2c), 2,4,6-me(3)c(6)h(2) (2d), c(6)f(5) (2e)] and bis(iminopyrrolyl) vanadium(iii) complex 4f [c(4)h(3)n(ch=n-2,6-(i)prc(6)h(3))](2)vcl(thf) have been prepared in good yields from vcl(3)(thf)(3) by treating with 1.0 and 2.0 equivalent deprotonated ligands in tetrahydrofuran (thf), respectively. these complexes were characterized by ftir and mass spectra as well as elemental analysis. structures of 2c and 4f were further confirmed by x-ray crystallographic analysis. dft calculations indicated the configurations of 2a-e with two nitrogen atoms of the chelating ligand coordinating with vanadium metal centre were more stable in energy. these complexes were employed as catalysts for ethylene polymerization at various reaction conditions. on activation with et(2)alcl, these complexes exhibited high catalytic activities (up to 22.2 kg mmol(-1) (v) h(-1) bar(-1)) even at high temperature, suggesting these catalysts possessed remarkable thermal stability. moreover, high molecular weight polymer with unimodal molecular weight distributions can be obtained, indicating the polymerization took place in a single-site nature. the copolymerizations of ethylene and 1-hexene with precatalysts 2a-e and 4f were also explored in the presence of et(2)alcl. catalytic activity, comonomer incorporation, and properties of the resultant polymers can be controlled over a wide range by tuning catalyst structures and reaction parameters. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000288677900009 |
| 公开日期 | 2012-06-12 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/45105]  |
| 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 | Mu JS,Wang YX,Li BX,et al. Synthesis of vanadium(III) complexes bearing iminopyrrolyl ligands and their role as thermal robust ethylene (co)polymerization catalysts[J]. dalton transactions,2011,40(14):3490-3497. |
| APA | Mu JS,Wang YX,Li BX,&Li YS.(2011).Synthesis of vanadium(III) complexes bearing iminopyrrolyl ligands and their role as thermal robust ethylene (co)polymerization catalysts.dalton transactions,40(14),3490-3497. |
| MLA | Mu JS,et al."Synthesis of vanadium(III) complexes bearing iminopyrrolyl ligands and their role as thermal robust ethylene (co)polymerization catalysts".dalton transactions 40.14(2011):3490-3497. |
入库方式： OAI收割
来源：长春应用化学研究所
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