Methylene-bridged bimetallic alpha-diimino nickel((II)) complexes: synthesis and high efficiency in ethylene polymerization
文献类型:期刊论文
作者 | Kong, Shaoliang1,2,3; Song, Kuifeng2,3; Liang, Tongling2,3; Guo, Cun-Yue1; Sun, Wen-Hua2,3![]() |
刊名 | DALTON TRANSACTIONS
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出版日期 | 2013 |
卷号 | 42期号:25页码:9176-9187 |
ISSN号 | 1477-9226 |
DOI | 10.1039/c3dt00023k |
英文摘要 | A series of 1,2-bis(arylimino) acenaphthylidenes (L1-L5) and their corresponding 4,4'-methylenebis( 1-(2,6-diisopropylphenylimino)-2-(arylimino) acenaphthylene) derivatives (L6-L10) were synthesized and used to form mono-nuclear nickel bromides LnNiBr(2) (n = 1-5, Ni1-Ni5) and bi-nuclear nickel halides LnNi(2)X(4) (n = 6-10: X = Br, Ni2-1-Ni2-5; n = 4, X = Cl, Ni2-6). All the organic compounds were fully characterized by FT-IR spectra, NMR measurements and elemental analysis. The nickel complexes were characterized by FT-IR spectra and elemental analysis and the molecular structures of the representative complexes Ni1, Ni2-1 and Ni2-3 were confirmed by single-crystal X-ray diffraction. Upon activation with either Et2AlCl or MAO, all the nickel complex pre-catalysts exhibited high activity toward ethylene polymerization over the temperature range from ambient to 50 degrees C. In general, the bi-nuclear complexes showed a positive synergetic effect with higher activity than their mono nuclear analogs. The resultant polyethylene possessed higher molecular weight and a high degree of branching. |
语种 | 英语 |
WOS记录号 | WOS:000319875600024 |
出版者 | ROYAL SOC CHEMISTRY |
源URL | [http://ir.iccas.ac.cn/handle/121111/54897] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Guo, Cun-Yue |
作者单位 | 1.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 4.Univ Hull, Dept Chem, Kingston Upon Hull HU6 7RX, N Humberside, England |
推荐引用方式 GB/T 7714 | Kong, Shaoliang,Song, Kuifeng,Liang, Tongling,et al. Methylene-bridged bimetallic alpha-diimino nickel((II)) complexes: synthesis and high efficiency in ethylene polymerization[J]. DALTON TRANSACTIONS,2013,42(25):9176-9187. |
APA | Kong, Shaoliang,Song, Kuifeng,Liang, Tongling,Guo, Cun-Yue,Sun, Wen-Hua,&Redshaw, Carl.(2013).Methylene-bridged bimetallic alpha-diimino nickel((II)) complexes: synthesis and high efficiency in ethylene polymerization.DALTON TRANSACTIONS,42(25),9176-9187. |
MLA | Kong, Shaoliang,et al."Methylene-bridged bimetallic alpha-diimino nickel((II)) complexes: synthesis and high efficiency in ethylene polymerization".DALTON TRANSACTIONS 42.25(2013):9176-9187. |
入库方式: OAI收割
来源:化学研究所
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