Metal complexes in catalytic conversions of olefins. 4. Heterogenization of nickel complexes on chemically modified silochrome surface; activity and selectivity in ethylene dimerization

  • D. B. Furman
  • A. O. Ivanov
  • A. Yu. Olenin
  • A. Yu. Vasil'kov
  • M. K. Munshieva
  • A. Yu. Belyankin
  • G. V. Lisichkin
  • V. A. Sergeev
  • O. V. Bragin
Physical Chemistry

Abstract

When activated by Et2AlCl phosphine-containing homogeneous nickel complexes and their heterogenized analogs (HMC) formed on silochrome S-120 modified by NH2 and N(PPh2)2 groups differ significantly in their effectiveness in ethylene dimerization. The catalytic activity of Ni-HMC-Et2AlCl depends on how the HMC was formed. Ni-HMC-I obtained by ligand exchange on chemically modified silochrome is ∼5–15 times more effective than Ni-HMC-II synthesized from the gas phase. The selectivity in formation of α-olefins (σC4 + σC6) is ∼4–5 times higher in the presence of Ni-HMC than for its homogeneous analogs.

Keywords

Ethylene Nickel Catalytic Activity Metal Complex Ligand Exchange 

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Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • D. B. Furman
    • 1
  • A. O. Ivanov
    • 1
  • A. Yu. Olenin
    • 1
  • A. Yu. Vasil'kov
    • 1
  • M. K. Munshieva
    • 1
  • A. Yu. Belyankin
    • 1
  • G. V. Lisichkin
    • 1
  • V. A. Sergeev
    • 1
  • O. V. Bragin
    • 1
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of Sciences of the USSRMoscow

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