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- W2073629485 abstract "A comparative analysis of homogeneous and immobilized catalysts for ethylene dimerization based on nickel(II) chelates has been carried out. Metal chelation enables an increase in catalyst activity and extends the temperature range over which they function. The fixation of metal ions on polymeric carriers with chelating groups leads to an additional increase in the specific catalytic activity of the complexes. In homogeneous systems, the activity of nickel chelates in the dimerization reaction decreases in the order: enaminoketonates ≈ enaminoiminates > diketonates > diacylaminates, whereas for immobilized catalysts the influence of the mode of coordination is negligible. For both types of catalyst an increase in the number of metal ions in the complex molecule or monomer unit leads to a decrease in the specific activity of the complexes provided that the polynuclear structure of the complex does not disintegrate." @default.
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- W2073629485 date "1989-11-01" @default.
- W2073629485 modified "2023-10-15" @default.
- W2073629485 title "Comparative analysis of homogeneous and immobilized catalysts for ethylene dimerization based on nickel(II) chelates" @default.
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- W2073629485 doi "https://doi.org/10.1016/0304-5102(89)80264-0" @default.
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