Synthesis and characterization of novel titanium complexes bearing [ONX]-type beta-enaminoketonato ligands and their application to ethylene (co)polymerization
文献类型：期刊论文
| 作者 | Tao P ; Tang XY ; Li BX ; Liu JY ; Li YS |
| 刊名 | dalton transactions
 |
| 出版日期 | 2012 |
| 卷号 | 41期号:24页码:7390-7398 |
| 关键词 | IMINE CHELATE LIGANDS OLEFIN POLYMERIZATION TRIDENTATE LIGANDS LIVING POLYMERIZATION ZIRCONIUM COMPLEXES DIAMIDE COMPLEXES BLOCK-COPOLYMERS CATALYST SYSTEM ALPHA-OLEFINS PROPYLENE |
| ISSN号 | 1477-9226 |
| 通讯作者 | liu jy |
| 中文摘要 | a series of novel titanium complexes bearing tridentate beta-enaminoketonato chelating ligands of type, [(rnc)-n-2(cf3)c(h)(cro)-o-1]ticl3 (2a: r-1 = ph, r-2 = -c6h4ome(o); 2b: r-1 = ph, r-2 = -c9h6n; 2c: r-1 = ph, r-2 = -c6h4sme(o); 2d: r-1 = ph, r-2 = -c6h4sph(o); 2e: r-1 = bu-t, r-2 = -c6h4sph(o)) and [(rnc)-n-2(r-1)c(h)c(cf3)o]ticl3 (2f: r-1 = ph, r-2 = -c6h4pph2(o)) were prepared from ticl4 by treating with one equiv of deprotonated ligands in toluene. the reaction of 1a with equivalent of ticl4 in thf afforded another complex, c6h4omenc(cf3)c(h)cpho]ticl3(thf) (3a), in addition to formation of the dichloride complex 4a, [c6h4(ome)nc(cf3)c(h)cpho](2)ticl2. after deprotonation by alkali-metal hydride at -78 degrees c in diethyl ether, ligand 1a could react with 0.5 equiv of ticl4 to form the exclusive and clean dichloride complex 4a in high yield. these complexes were identified by nmr and mass spectra as well as elemental analyses. x-ray diffraction studies on these new trichloride complexes revealed a distorted octahedral coordination of the central metal with three chlorine atoms in a mer disposition. dichloride complex 4a also adopted a distorted octahedral geometry around the titanium center. two chlorine atoms are situated in the cis position, as seen in the bond angles for cl(1)-ti-cl(2) (92.64(7)degrees). the o atom on the heterocyclic group was not coordinated with ti. when activated by modified methylaluminoxane (mmao), complexes 2a-e exhibited moderate to high activity towards ethylene (co)polymerization, giving relatively high molecular weight polymers with unimodal molecular weight distribution. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000304716800026 |
| 公开日期 | 2013-06-30 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48537]  |
| 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 | Tao P,Tang XY,Li BX,et al. Synthesis and characterization of novel titanium complexes bearing [ONX]-type beta-enaminoketonato ligands and their application to ethylene (co)polymerization[J]. dalton transactions,2012,41(24):7390-7398. |
| APA | Tao P,Tang XY,Li BX,Liu JY,&Li YS.(2012).Synthesis and characterization of novel titanium complexes bearing [ONX]-type beta-enaminoketonato ligands and their application to ethylene (co)polymerization.dalton transactions,41(24),7390-7398. |
| MLA | Tao P,et al."Synthesis and characterization of novel titanium complexes bearing [ONX]-type beta-enaminoketonato ligands and their application to ethylene (co)polymerization".dalton transactions 41.24(2012):7390-7398. |
入库方式： OAI收割
来源：长春应用化学研究所
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