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Transition Metal Chemistry

, Volume 44, Issue 2, pp 125–133 | Cite as

Ethylene oligomerization promoted by nickel-based catalysts with silicon-bridged diphosphine amine ligands

  • Wei Wei
  • Buwei Yu
  • Fakhre Alam
  • Yongwang Huang
  • Shaoling Cheng
  • Tao JiangEmail author
Article
  • 88 Downloads

Abstract

A series of nickel complexes [Ni(L1)Br2] (C1), [Ni(L2)Br2] (C2) and [Ni(L3)Br2] (C3) (L1 = N-isopropyl-N-(((diphenylphosphanyl)methyl)dimethylsilyl)-1,1-diphenylphosphanamine, L2 = N-cyclopentyl-N-(((diphenylphosphanyl)methyl)dimethylsilyl)-1,1-diphenylphosphanamine, L3 = N-(2,6-diisopropylphenyl)-N-(((diphenylphosphanyl)methyl)dimethylsilyl)-1,1-diphenylphosphanamine) were synthesized and characterized by elemental analysis, mass spectrometry, spectroscopy and single-crystal X-ray diffraction. L1, L2 and L3 each act as bidentate ligands. Upon activation with ethylaluminum dichloride, these complexes produce efficient catalytic systems for selective dimerization of ethylene to 1-butene, with catalytic activities of 3.45 × 107 g/(molNi·h) and 95.6% butene selectivity containing 87.6% 1-butene fraction.

Notes

Acknowledgements

This study was supported by the National Key Research and Development Program of China (2017YFB0306700). The Natural Science Foundation of Tianjin City (14JCYBJC23100, 15JCYBJC48100 and 16JCZDJC31600).

Supplementary material

11243_2018_276_MOESM1_ESM.doc (3.1 mb)
CCDC numbers 1859463 and 1859467 contain the supplementary crystallographic data for C2 and C3. The data can be obtained free of charge from the Cambridge Crystallographic Data Centre via http://www.ccdc.cam.ac.uk/. (DOC 3155 kb)

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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Tianjin Marine Chemical Technology Engineering Center, College of Chemical Engineering and Material ScienceTianjin University of Science and TechnologyTianjinChina
  2. 2.PetroChina Daqing Chemical Engineering Research CenterDaqingChina

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