0000000000466016
AUTHOR
Qifeng Xing
Ethylene polymerization by the thermally unique 1-[2-(bis(4-fluoro phenyl)methyl)-4,6- dimethylphenylimino]-2-aryliminoacenaphthylnickel precursors
A series of 1-[2-(bis(4-fluorophenyl)methyl)-4,6-dimethylphenylimino]-2-aryliminoacenaphthylene derivatives together with the corresponding nickel bromide complexes was synthesized and characterized. Representative complexes C2 and C5 were characterized by the single-crystal X-ray diffraction, revealing a distorted tetrahedral geometry. Upon activation with either methylaluminoxane (MAO) or ethylaluminum sesquichloride (EASC), all nickel complexes exhibited high activities towards ethylene polymerization, producing polyethylene with a relatively low degree of branching and narrow polydispersity. Complex C1 maintained good activity at elevated reaction temperatures, which indicates significa…
2-(1-Aryliminoethyl)-9-arylimino-5,6,7,8- tetrahydrocycloheptapyridyl iron(II) dichloride: synthesis, characterization, and the highly active and tunable active species in ethylene polymerization
A series of 2-(1-arylimino)ethyl-9-arylimino-5,6,7,8-tetrahydrocycloheptapyridine derivatives was synthesized and fully characterized, and thereafter reacted with iron dichloride to form their corresponding iron(II) complexes. The single crystals of representative organic and iron complex compounds were obtained and analyzed by the X-ray diffraction analysis, indicating the distorted bipyramidal geometry around the iron core. Moreover, DFT calculations were performed on selected species to determine their structural features. On treatment with either MAO or MMAO, all iron complex pre-catalysts showed high activities (up to 1.56 × 10(7) gPE mol(-1)(Fe) h(-1)) toward ethylene polymerization. …
CCDC 1008609: Experimental Crystal Structure Determination
Related Article: Fang Huang, Qifeng Xing, Tongling Liang, Zygmunt Flisak, Bin Ye, Xinquan Hu, Wenhong Yang, Wen-Hua Sun|2014|Dalton Trans.|43|16818|doi:10.1039/C4DT02102A
CCDC 1008610: Experimental Crystal Structure Determination
Related Article: Fang Huang, Qifeng Xing, Tongling Liang, Zygmunt Flisak, Bin Ye, Xinquan Hu, Wenhong Yang, Wen-Hua Sun|2014|Dalton Trans.|43|16818|doi:10.1039/C4DT02102A
CCDC 1042277: Experimental Crystal Structure Determination
Related Article: Shizhen Du, Qifeng Xing, Zygmunt Flisak, Erlin Yue, Yang Sun, Wen-Hua Sun|2015|Dalton Trans.|44|12282|doi:10.1039/C5DT00052A
CCDC 1008608: Experimental Crystal Structure Determination
Related Article: Fang Huang, Qifeng Xing, Tongling Liang, Zygmunt Flisak, Bin Ye, Xinquan Hu, Wenhong Yang, Wen-Hua Sun|2014|Dalton Trans.|43|16818|doi:10.1039/C4DT02102A
CCDC 1042276: Experimental Crystal Structure Determination
Related Article: Shizhen Du, Qifeng Xing, Zygmunt Flisak, Erlin Yue, Yang Sun, Wen-Hua Sun|2015|Dalton Trans.|44|12282|doi:10.1039/C5DT00052A