0000000000714751

AUTHOR

Wenhong Yang

0000-0003-2269-2987

showing 6 related works from this author

2-(1-Aryliminoethyl)-9-arylimino-5,6,7,8- tetrahydrocycloheptapyridyl iron(II) dichloride: synthesis, characterization, and the highly active and tun…

2014

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. …

Inorganic ChemistryBipyramidEthylene polymerizationChemistryInorganic chemistryDispersityPolymer chemistryIron complexCatalysisRing strainCharacterization (materials science)Dalton Transactions
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2-Chloro/phenyl-7-arylimino-6,6-dimethylcyclopenta[b]pyridylnickel chlorides: Synthesis, characterization and ethylene oligomerization

2017

Abstract 2-Chloro/phenyl-7-arylimino-6,6-dimethylcyclopenta[b]pyridylnickel chlorides (Ni1–Ni8) were synthesized from the respective ligands L1–L8 and characterized. Upon activation with either methylaluminoxane (MAO) or ethylaluminium sesquichloride (EASC), they show high catalytic activity of up to 10.84 × 106 g(oligomer) mol− 1(Ni) h− 1 in ethylene oligomerization. The products range from butenes to dodecenes for Ni1–Ni4, but are limited to butenes and hexenes in the case of Ni5–Ni8. DFT calculations indicate that the Ni C bond length in the model alkyl complexes depends both on the nature of the substituents at the heterocycles and the kind of the alkyl group, shedding some light on the…

chemistry.chemical_classificationEthylene010405 organic chemistryethylene oligomerizationProcess Chemistry and TechnologyMethylaluminoxaneGeneral ChemistryPolyethylene010402 general chemistry01 natural sciencesOligomerMedicinal chemistryCatalysis0104 chemical sciencesCatalysisBond lengthnickel precatalystchemistry.chemical_compoundchemistrysubstituent influenceEthylaluminium sesquichlorideOrganic chemistry7-Aryliminocyclopenta[b]pyridineAlkylCatalysis Communications
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CCDC 1554541: Experimental Crystal Structure Determination

2018

Related Article: Hongyi Suo, Youfu Zhang, Zhifeng Ma, Wenhong Yang, Zygmunt Flisak, Xiang Hao, Xinquan Hu, Wen-Hua Sun|2017|Catalysis Communications|102|26|doi:10.1016/j.catcom.2017.08.021

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(mu-chloro)-dichloro-bis(2-chloro-N-(26-dimethylphenyl)-66-dimethyl-56-dihydro-7H-cyclopenta[b]pyridin-7-imine)-di-nickelExperimental 3D Coordinates
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CCDC 1008609: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallographyCrystal Systemdichloro-(N-(26-dimethylphenyl)-2-(1-((26-dimethylphenyl)imino)ethyl)-5678-tetrahydro-9H-cyclohepta[b]pyridin-9-imine)-iron(ii) dichloromethane solvateCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1008610: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdichloro-(N-(26-diethylphenyl)-2-(1-((26-diethylphenyl)imino)ethyl)-5678-tetrahydro-9H-cyclohepta[b]pyridin-9-imine)-ironExperimental 3D Coordinates
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CCDC 1008608: Experimental Crystal Structure Determination

2014

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

Space GroupCrystallographyN-(26-diethylphenyl)-2-(N-(26-diethylphenyl)ethanimidoyl)-5678-tetrahydro-9H-cyclohepta[b]pyridin-9-imineCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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