Ring-tension adjusted ethylene polymerization by aryliminocycloheptapyridyl nickel complexes
文献类型:期刊论文
作者 | Huang, Fang1,2,3; Sun, Zelin2,3; Du, Shizhen2,3; Yue, Erlin2,3; Ba, Junjun1,2,3; Hu, Xinquan1; Liang, Tongling2,3; Galland, Griselda B.4; Sun, Wen-Hua2,3,5![]() |
刊名 | DALTON TRANSACTIONS
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出版日期 | 2015 |
卷号 | 44期号:32页码:14281-14292 |
英文摘要 | The stoichiometric reactions of 5,6,7,8-tetrahydrocycloheptapyridin-9-one (cycloheptapyridin-9-one) with various anilines lead to corresponding mixtures of 9-aryliminocycloheptapyridine and the isomeric 9-arylamino-5,6,7-trihydrocycloheptapyridine derivatives; these compounds further reacted with nickel dichloride to form 9-aryliminocycloheptapyridyl nickel chlorides, respectively. The new organic compounds were analyzed by the NMR measurements, and all the organic and complex compounds were characterized by the FT-IR spectroscopy and elemental analysis. In addition, the molecular structures of representative nickel complexes Ni1 and Ni3, determined by means of single-crystal X-ray diffraction, were found to be binuclear dimers with distorted square-pyramidal geometry around the nickel centers. On activation with either ethylaluminium sesquichloride (Et3Al2Cl3) or methylaluminoxane (MAO), all nickel complex pre-catalysts exhibited high activities of up to 7.80 x 10(6) g PE mol(-1) (Ni) h(-1) toward ethylene polymerization and produced highly branched polyethylenes in narrow polydispersity. The title nickel complexes showed comparable activities with 8-arylimino-5,6,7-trihydroquinolyl nickel analogues; whilst both exhibited higher activities than did the 2-iminopyridyl nickel analogues due to the enhancement of the ring-tension of cyclic-fused pyridine derivatives. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2015-10-27 |
源URL | [http://ir.iccas.ac.cn/handle/121111/27775] ![]() |
专题 | 化学研究所_工程塑料实验室 |
作者单位 | 1.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China 2.Chinese Acad Sci, Key Lab Engn Plast, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 4.Univ Fed Rio Grande do Sul, Inst Quim, BR-91501970 Porto Alegre, RS, Brazil 5.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Huang, Fang,Sun, Zelin,Du, Shizhen,et al. Ring-tension adjusted ethylene polymerization by aryliminocycloheptapyridyl nickel complexes[J]. DALTON TRANSACTIONS,2015,44(32):14281-14292. |
APA | Huang, Fang.,Sun, Zelin.,Du, Shizhen.,Yue, Erlin.,Ba, Junjun.,...&Sun, Wen-Hua.(2015).Ring-tension adjusted ethylene polymerization by aryliminocycloheptapyridyl nickel complexes.DALTON TRANSACTIONS,44(32),14281-14292. |
MLA | Huang, Fang,et al."Ring-tension adjusted ethylene polymerization by aryliminocycloheptapyridyl nickel complexes".DALTON TRANSACTIONS 44.32(2015):14281-14292. |
入库方式: OAI收割
来源:化学研究所
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