0000000000408519
AUTHOR
Wenjuan Zhang
Dinuclear chloroneodymium quinolinylcarboxylates: The molecular structures affected by water and the catalytic behavior toward isoprene polymerization
Abstract A series of dinuclear chloroneodymium quinolinylcarboxylate compounds was synthesized and characterized. The nature and importance of metal-organic aggregations have been considered as an important factor regarding the molecular structure and catalytic performance. The neodymium center in all the title compounds exhibits the coordination numbers of 8. Cage aggregation was observed in the solid state, and the cyclic arrangement was achieved when water molecules were incorporated into the structure. Upon the activation with Al(i-Bu)3, all the title neodymium compounds form the efficient catalysts for isoprene polymerization. The catalytic activities are not strongly affected by the m…
Propyl substituted 4-arylimino-1,2,3-trihydroacridylnickel complexes: Their synthesis, characterization and catalytic behavior toward ethylene
Propyl substituted 4-arylimino-1,2,3-trihydroacridylnickel dihalide complexes were designed and prepared by metal-induced template reaction with NiCl2 center dot 6H(2)O or (DME)NiBr2. They were characterized by infrared spectroscopy and elemental analysis. Single crystal X-ray crystallography of representative complex Ni3 revealed a distorted trigonal bipyramidal geometry around nickel. The catalytic activities of the title nickel complexes were negatively affected by propyl substituent on their backbone when comparing with the results by unsubstituted ones. With the activation of diethylaluminium chloride, all nickel complexes exhibited moderate activity (up to 5.10 x 10(5) g mol(-1)(Ni) h…
A practical ethylene polymerization for vinyl-polyethylenes: synthesis, characterization and catalytic behavior of α,α’-bisimino-2,3:5,6- bis(pentamethylene)pyridyliron chlorides
A series of α,α′-bis(arylimino)-2,3:5,6-bis(pentamethylene)pyridyliron chlorides was synthesized in a one-pot reaction and characterized by FT-IR and elemental analysis as well as X-ray crystallography for one representative iron complex, where the Fe center adopts a distorted square pyramidal geometry with three coordinating nitrogen and two chlorine atoms. The iron precatalysts, upon treatment with either methylaluminoxane (MAO) or modified methylaluminoxane (MMAO), exhibit high activities in the range of 107 g of PE per mol of Fe per h toward ethylene polymerization, yielding highly linear and, more importantly, vinyl-polyethylenes. The correlation between the structural features of iron…
Activity and Thermal Stability of Cobalt(II)-Based Olefin Polymerization Catalysts Adorned with Sterically Hindered Dibenzocycloheptyl Groups.
Five examples of unsymmetrical 2-(2,4-bis(dibenzocycloheptyl)-6-methylphenyl- imino)ethyl)-6-(1-(arylyimino)ethyl)pyridine derivatives (aryl = 2,6-Me2C6H3 in L1
CCDC 1486040: Experimental Crystal Structure Determination
Related Article: Wenjuan Zhang, Lin Qian, Lixia He, Yongqiang Qian, Jiye Wang, Zhonghua Wang, Qingju Lin, Xiang Hao, Zygmunt Flisak, Wen-Hua Sun|2016|Inorg.Chim.Acta|453|589|doi:10.1016/j.ica.2016.09.030
CCDC 1476785: Experimental Crystal Structure Determination
Related Article: Shizhen Du, Xinxin Wang, Wenjuan Zhang, Zygmunt Flisak, Yang Sun, Wen-Hua Sun|2016|Polym.Chem.|7|4188|doi:10.1039/C6PY00745G
CCDC 1486038: Experimental Crystal Structure Determination
Related Article: Wenjuan Zhang, Lin Qian, Lixia He, Yongqiang Qian, Jiye Wang, Zhonghua Wang, Qingju Lin, Xiang Hao, Zygmunt Flisak, Wen-Hua Sun|2016|Inorg.Chim.Acta|453|589|doi:10.1016/j.ica.2016.09.030
CCDC 1486039: Experimental Crystal Structure Determination
Related Article: Wenjuan Zhang, Lin Qian, Lixia He, Yongqiang Qian, Jiye Wang, Zhonghua Wang, Qingju Lin, Xiang Hao, Zygmunt Flisak, Wen-Hua Sun|2016|Inorg.Chim.Acta|453|589|doi:10.1016/j.ica.2016.09.030
CCDC 1043484: Experimental Crystal Structure Determination
Related Article: Shengdong Wang, Wenjuan Zhang, Shizhen Du, Sin Asuha, Zygmunt Flisak, Wen-Hua Sun|2015|J.Organomet.Chem.|798|408|doi:10.1016/j.jorganchem.2015.05.001
CCDC 1905876: Experimental Crystal Structure Determination
Related Article: Muhammad Zada, Liwei Guo, Yanping Ma, Wenjuan Zhang, Zygmunt Flisak, Yang Sun, Wen-Hua Sun|2019|Molecules|24|2007|doi:10.3390/molecules24102007
CCDC 1905877: Experimental Crystal Structure Determination
Related Article: Muhammad Zada, Liwei Guo, Yanping Ma, Wenjuan Zhang, Zygmunt Flisak, Yang Sun, Wen-Hua Sun|2019|Molecules|24|2007|doi:10.3390/molecules24102007