Ligand Steric and Electronic Effects on beta-Ketiminato Neutral Nickel(II) Olefin Polymerization Catalysts
文献类型：期刊论文
| 作者 | Song DP ; Shi XC ; Wang YX ; Yang JX ; Li YS |
| 刊名 | organometallics
 |
| 出版日期 | 2012 |
| 卷号 | 31期号:3页码:966-975 |
| 关键词 | PHOSPHINE-SULFONATE LIGANDS FOCK-SLATER CALCULATIONS ETHYLENE POLYMERIZATION COMPLEXES BEARING NORBORNENE COPOLYMERIZATIONS PALLADIUM(II) COMPLEXES REMOTE SUBSTITUENTS VINYL MONOMERS ALPHA-OLEFINS OLIGOMERIZATION |
| ISSN号 | 0276-7333 |
| 通讯作者 | li ys |
| 中文摘要 | a series of novel neutral nickel complexes 3a-g and 4a-d bearing the beta-ketiminato ligands [(2,6-(pr2c6h3)-pr-i)n=chchc(r)o]ni(r')(l) (for 3a-g, r' = me, l = py, and r = bu-t (3a), ph (3b), 1-naphthyl (3c), 9-anthryl (3d), phnme2(p) (3e), phome(p) (3f), phcf3(p) (3g); for 4a-d, r' = ph, l = pph3, and bu-t (4a), ph (4b), 1-naphthyl (4c), 9-anthryl (4d)) have been synthesized and characterized. the molecular structures of 3b-d,f,g and 4a,c were further confirmed by x-ray crystallographic analysis. these complexes were employed in ethylene polymerization to systematically investigate ligand steric and electronic effects on the catalytic properties, including activity, molecular weight (mw), and branching number of the polyethylene obtained. the complexes bearing more bulky ligands showed higher activities and produced more branched polyethylene. electron-deficient ligands were found to increase the catalytic activity, decrease the mw, and enhance the branching content of the polyethylene. in addition, phosphine ni-ii-ph complexes 4a-d proved to be more active than the corresponding pyridine ni-ii-me complexes 3a-d, probably due to the easier dissociation of pph3 relative to a pyridine from a nickel center. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000300116100028 |
| 公开日期 | 2013-06-08 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48332]  |
| 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 | Song DP,Shi XC,Wang YX,et al. Ligand Steric and Electronic Effects on beta-Ketiminato Neutral Nickel(II) Olefin Polymerization Catalysts[J]. organometallics,2012,31(3):966-975. |
| APA | Song DP,Shi XC,Wang YX,Yang JX,&Li YS.(2012).Ligand Steric and Electronic Effects on beta-Ketiminato Neutral Nickel(II) Olefin Polymerization Catalysts.organometallics,31(3),966-975. |
| MLA | Song DP,et al."Ligand Steric and Electronic Effects on beta-Ketiminato Neutral Nickel(II) Olefin Polymerization Catalysts".organometallics 31.3(2012):966-975. |
入库方式： OAI收割
来源：长春应用化学研究所
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