Tris(pyrazolyl)methane-chromium(III) complexes as highly active catalysts for ethylene polymerization
link https://doi.org/10.1016/j.molcata.2006.06.048account_box Garcia Rozco, Ivanaccount_box Quijada, Raulaccount_box Vera, Karenaccount_box Valderrama, Mauricio
Comparte este registro
Reaction of complex CrCl3 (THF)(3) with the tris(pyrazolyl)methane ligands, HC(Pz)(3), HC(3,5-Me(2)Pz)(3) and their substituted derivatives RC(Pz)(3) (R = Me, CH2OH, CH2OSO2Me) in THF lead to the formation of neutral complexes of the types [RC(PZ)(3)CrCl3] and [RC(3,5-Me(2)PZ)(3)CrCl3]. After reaction with methylalumoxane (MAO) these complexes are active in the polymerization of ethylene. The substituent on the methane central carbon atom of the ligand has some influence in polymerization behavior. This compounds present higher activities than similar chromium complexes, in the ethylene polymerization reaction. (c) 2006 Elsevier B.V. All rights reserved.
Registro Sencillo
Registro Completo
| Autor | Garcia Rozco, Ivan Quijada, Raul Vera, Karen Valderrama, Mauricio |
| Título | Tris(pyrazolyl)methane-chromium(III) complexes as highly active catalysts for ethylene polymerization |
| Revista | JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL |
| ISSN | 1381-1169 |
| ISSN electrónico | 1873-314X |
| Volumen | 260 |
| Número de publicación | 1-2 |
| Página inicio | 70 |
| Página final | 76 |
| Fecha de publicación | 2006 |
| Resumen | Reaction of complex CrCl3 (THF)(3) with the tris(pyrazolyl)methane ligands, HC(Pz)(3), HC(3,5-Me(2)Pz)(3) and their substituted derivatives RC(Pz)(3) (R = Me, CH2OH, CH2OSO2Me) in THF lead to the formation of neutral complexes of the types [RC(PZ)(3)CrCl3] and [RC(3,5-Me(2)PZ)(3)CrCl3]. After reaction with methylalumoxane (MAO) these complexes are active in the polymerization of ethylene. The substituent on the methane central carbon atom of the ligand has some influence in polymerization behavior. This compounds present higher activities than similar chromium complexes, in the ethylene polymerization reaction. (c) 2006 Elsevier B.V. All rights reserved. |
| Derechos | acceso restringido |
| DOI | 10.1016/j.molcata.2006.06.048 |
| Editorial | ELSEVIER SCIENCE BV |
| Enlace | |
| Id de publicación en WoS | WOS:000242327500012 |
| Paginación | 7 páginas |
| Palabra clave | chromium complexes tris(1-pyrazolyl)methane complexes synthesis ethylene polymerization polyethylene CHAIN TRANSFER-REACTIONS OLEFIN POLYMERIZATION STRUCTURAL-CHARACTERIZATION DICHLORIDE COMPLEXES CHROMIUM(III) ALKYLS LIGANDS CHEMISTRY BEHAVIOR TRIMERIZATION COPOLYMERIZATION |
| Tipo de documento | artículo |