0000000001117740

AUTHOR

Zhifeng Ma

0000-0001-6084-2371

showing 2 related works from this author

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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