Cobalt-β-diimine complexes for ethylene oligomerization
| Autor: | José Ribeiro Gregório, Katia Bernardo-Gusmão, Daniel Thiele, Marcela Caovilla, Roberto F. de Souza |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Ethylene
010405 organic chemistry Process Chemistry and Technology chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Toluene Catalysis 0104 chemical sciences Solvent chemistry.chemical_compound chemistry Ethylaluminium sesquichloride Polymer chemistry Organic chemistry Selectivity Cobalt Diimine |
| Zdroj: | Catalysis Communications. 101:85-88 |
| ISSN: | 1566-7367 |
| DOI: | 10.1016/j.catcom.2017.08.002 |
| Popis: | This work describes the synthesis of cobalt-β-diimine complexes as well as their application as ethylene oligomerization catalyst precursors. The ligands differ from each other by substituents on the aromatic rings. The catalytic precursors were tested in ethylene oligomerization, using EASC (Ethylaluminium sesquichloride, Et 2 Al 2 Cl 3 ) as co-catalyst, and toluene as solvent and displayed TOF in the range of 0.8 to 34 s − 1 . The catalytic systems were selective in the C 4 -C 6 fraction, attaining 100% selectivity in C 4 . It was observed that the ligands nature strongly influence the catalytic activity. |
| Databáze: | OpenAIRE |
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