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| New Half-sandwich Zirconium（IV） Complexes Containing Salicylaldimine Ligands： Synthesis,Characterizations and Catalytic Properties | |
| 引用本文： | LIU Kefeng,;YAO Gang,;WU Wenlei,;GAO Bo. New Half-sandwich Zirconium（IV） Complexes Containing Salicylaldimine Ligands： Synthesis,Characterizations and Catalytic Properties[J]. 高等学校化学研究, 2014, 30(5): 825-830. DOI: 10.1007/s40242-014-4054-6 |
| 作者姓名： | LIU Kefeng, YAO Gang, WU Wenlei, GAO Bo |
| 作者单位： | [1]Yellow River Dalta Jingbo Research Institute of Chemical Industry, Boxing 256500, P. R. China; [2]School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China; [3]Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Scienees, Changehun 130022, P. R. China |
| 基金项目： | Supported by the National Natural Science Foundation of China（No.21204082）. |
| 摘 要： | Two new half-sandwich zirconium（IV） complexes bearing salicylaldimine ligands of the type Cp＊Zr[2-tBu-4-R-6-（CH=NiPr）C6H2O]C12[R=H（1）, tBu（2）] were prepared by the reaction of Cp＊ZrC13 with the corresponding lithium of salicylaldimine ligands 2-tBu-4-R-6-（CH=NiPr）C6H2OLi[R=H（LiLa）, tBu（LiLb）]. Com- plexes 1 and 2 were characterized by 1H NMR, BC NMR spectroscopy and elemental analysis. When activated with AliBu3 and Ph3CB（C6F5）4, both complexes 1 and 2 exhibited reasonable catalytic activities for ethylene polymeriza- tion, producing polyethylenes with moderate molecular weight. Complexes 1 and 2 also exhibited reasonable catalyt- ic activities for ethylene copolymerization with 1-hexene, producing poly（ethylene-co-l-hexene）s with moderate molecular weight and reasonable 1-hexene content. |
| 关 键 词： | 水杨醛亚胺 配合物 配体 催化性能 夹心 NMR光谱 合成 表征 |
| 收稿时间： | 2014-02-20 |
New Half-sandwich Zirconium(IV) Complexes Containing Salicylaldimine Ligands: Synthesis,Characterizations and Catalytic Properties |
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| LIU Kefeng,YAO Gang,WU Wenlei,GAO Bo. New Half-sandwich Zirconium(IV) Complexes Containing Salicylaldimine Ligands: Synthesis,Characterizations and Catalytic Properties[J]. Chemical Research in Chinese University, 2014, 30(5): 825-830. DOI: 10.1007/s40242-014-4054-6 | |
| Authors: | LIU Kefeng YAO Gang WU Wenlei GAO Bo |
| Affiliation: | 1. Yellow River Dalta Jingbo Research Institute of Chemical Industry, Boxing 256500, P. R. China; 2. School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, P. R. China; 3. Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China |
| Abstract: | Two new half-sandwich zirconium(IV) complexes bearing salicylaldimine ligands of the type CpZr[2-tBu-4-R-6-(CH=NiPr)C6H2O]Cl2[R=H(1), tBu(2)] were prepared by the reaction of CpZrCl3 with the corresponding lithium of salicylaldimine ligands 2-tBu-4-R-6-(CH=NiPr)C6H2OLi[R=H(LiLa), tBu(LiLb)]. Complexes 1 and 2 were characterized by 1H NMR, 13C NMR spectroscopy and elemental analysis. When activated with AliBu3 and Ph3CB(C6F5)4, both complexes 1 and 2 exhibited reasonable catalytic activities for ethylene polymerization, producing polyethylenes with moderate molecular weight. Complexes 1 and 2 also exhibited reasonable catalytic activities for ethylene copolymerization with 1-hexene, producing poly(ethylene-co-1-hexene)s with moderate molecular weight and reasonable 1-hexene content. |
| Keywords: | Zirconium complex Metallocene catalyst Ethylene polymerization Olefin copolymerization |
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