Metal complexes in catalytic conversions of olefins. 4. Heterogenization of nickel complexes on chemically modified silochrome surface; activity and selectivity in ethylene dimerization
Furman, D. B. ; Ivanov, A. O. ; Olenin, A. Yu. ; Vasil'kov, A. Yu. ; Munshieva, M. K. ; Belyankin, A. Yu. ; Lisichkin, G. V. ; Sergeev, V. A. ; Bragin, O. V.
Springer
Published 1990
Springer
Published 1990
| ISSN: |
1573-9171
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Chemistry and Pharmacology
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| Notes: |
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.
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| Type of Medium: |
Electronic Resource
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| URL: |