0000000001316108

AUTHOR

Jiaxin Li

showing 4 related works from this author

2-(N,N-Diethylaminomethyl)-6,7-trihydroquinolinyl-8-ylideneamine-Ni(ii) chlorides: application in ethylene dimerization and trimerization

2020

A series of Ni(II) complexes with the general formula [2-((NEt2)Me)-8-{N(Ar)}C9H8N]NiCl2, where Ar = 2,6-Me2C6H3 in Ni1, 2,6-Et2C6H3 in Ni2, 2,6-i-Pr2C6H3 in Ni3, 2,4,6-Me3C6H2 in Ni4, 2,6-Et2-4-MeC6H2 in Ni5, and 2,4,6-t-Bu3C6H2 in Ni6, has been prepared using a one-pot reaction of 2-(N,N-diethylaminomethyl)-6,7-dihydroquinolin-8(5H)-one with the corresponding aniline and nickel dichloride hexahydrate. The resultant complexes were characterized using elemental analysis and FT-IR spectroscopy, while the mononuclear Ni1 and Ni3 were also the subject of single-crystal X-ray diffraction study. On activation with MMAO, the complexes Ni1–Ni6 displayed good activity in ethylene oligomerization, f…

EthyleneNickel metallographyInduction periodAliphatic compoundsGeneral ChemistryBinary alloysMedicinal chemistryChlorine compoundsCatalysisCatalysisCatalyst selectivityAnilineEthylenechemistry.chemical_compoundAnilinechemistryElemental analysisCatalyst activityMaterials ChemistrySingle crystalsThermal stabilitySelectivitySpectroscopyDimerizationNew Journal of Chemistry
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Ethylene oligomerization with 2-hydroxymethyl-5,6,7-trihydroquinolinyl-8-ylideneamine-Ni(II) chlorides

2021

Abstract A series of Ni complexes of the general formula [2-(MeOH)-8-{N(Ar)}C9H8N]NiCl2, where Ar = 2,6-Me2C6H3 in Ni1; 2,6-Et2C6H3 in Ni2; 2,6-i-Pr2C6H3 in Ni3; 2,4,6-Me3C6H2 in Ni4; 2,6-Et2-4-MeC6H2 in Ni5 and 2,4,6-t-Bu3C6H2 in Ni6 has been synthesized and characterized by elemental analysis and IR spectroscopy. On activation with MMAO or Et2AlCl, these complexes showed high activity in ethylene oligomerization, reaching 2.23 × 106 g·mol–1 (Ni) h–1 at 30 °C with the Al/Ni ratio of 5500 and 9.11 × 105 g·mol–1 (Ni) h–1 with the Al/Ni of 800, respectively. Moreover, the content of α-C4 indicated high selectivity exceeding 99% in the Ni/Et2AlCl system. Comparing with the previous report by o…

Steric effectsEthyleneSubstituentInfrared spectroscopy010402 general chemistryCo-catalyst01 natural sciencesBiochemistryMedicinal chemistryInorganic ChemistryMetalchemistry.chemical_compoundSubstituent effectEthylene oligomerizationMaterials ChemistryHydroxymethylSelectivityPhysical and Theoretical ChemistryNickel complexes010405 organic chemistryChemistryLigandOrganic Chemistry0104 chemical sciencesActivityElemental analysisvisual_artvisual_art.visual_art_mediumJournal of Organometallic Chemistry
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CCDC 2005997: Experimental Crystal Structure Determination

2020

Related Article: Jiaxin Li, Yanping Ma, Xinquan Hu, Zygmunt Flisak, Liang Tongling, Wen-Hua Sun|2020|New J.Chem.|44|17047|doi:10.1039/D0NJ04003G

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersdichloro-[N-({8-[(26-dimethylphenyl)imino]-5678-tetrahydroquinolin-2-yl}methyl)-N-ethylethanamine]-nickel(ii)Experimental 3D Coordinates
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CCDC 2005998: Experimental Crystal Structure Determination

2020

Related Article: Jiaxin Li, Yanping Ma, Xinquan Hu, Zygmunt Flisak, Liang Tongling, Wen-Hua Sun|2020|New J.Chem.|44|17047|doi:10.1039/D0NJ04003G

Space GroupCrystallographydichloro-{N-[(8-{[26-bis(propan-2-yl)phenyl]imino}-5678-tetrahydroquinolin-2-yl)methyl]-N-ethylethanamine}-nickel(ii)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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