Nickel pre-catalysts bearing [(N)-imidoylamidine] ligands; influence of the presence of pyridine and pentafluorophenyl groups in ligand backbone on the reactivity in ethylene polymerizations
Author | dc.contributor.author | Peoples, Brian C. | |
Author | dc.contributor.author | Vega, Gala De la | es_CL |
Author | dc.contributor.author | Valdebenito, Carolina | es_CL |
Author | dc.contributor.author | Quijada Abarca, Juan | es_CL |
Author | dc.contributor.author | Ibañez, Andrés | es_CL |
Author | dc.contributor.author | Valderrama, Mauricio | es_CL |
Author | dc.contributor.author | Rojas Cortés, René | es_CL |
Admission date | dc.date.accessioned | 2012-06-27T15:31:44Z | |
Available date | dc.date.available | 2012-06-27T15:31:44Z | |
Publication date | dc.date.issued | 2012 | |
Cita de ítem | dc.identifier.citation | Journal of Organometallic Chemistry 700 (2012) 147-153 | es_CL |
Identifier | dc.identifier.other | doi:10.1016/j.jorganchem.2011.11.035 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/125658 | |
General note | dc.description | Artículo de publicación ISI | es_CL |
Abstract | dc.description.abstract | In this contribution the synthesis and polymerization activity of the nickel complexes [NiBr2{N0-(2,6- diisopropylphenyl)-N-[1-(2,6-diisopropylphenylimine)ethyl]-N-(2,3,4,5,6-pentafluorophenyl)acetam idine}] (2), [NiBr2{N0-(2,6-diisopropylphenyl)-N-[1-(2,6-diisopropylphenylimine)ethyl]-N-(2,3,4,5,6- pentafluorophenylimine)ethylacetamidine}] (2a) and [NiBr2{N-(2,6-diisopropylphenyl)-N-[1-(2,6- diisopropylphenylimine)]-N-(pyridin-4-yl)acetamidine}] (3) are reported. The variation of the phenyl substituents on the b amine was found to influence the polymerization activity of the complexes. The electron withdrawing/donating capacity of the substituted ring was found to be correlated with the polymerization activity, with the pentafluoro substituted ring increasing the polymerization activity and the pyridine ring decreasing the activity. The ligands and complexes were characterized using standard techniques and the polymer properties analyzed. | es_CL |
Patrocinador | dc.description.sponsorship | FONDECYT 11060384 and 1100286 | es_CL |
Lenguage | dc.language.iso | en | es_CL |
Publisher | dc.publisher | Elsevier | es_CL |
Keywords | dc.subject | Ni polymerization catalysts | es_CL |
Título | dc.title | Nickel pre-catalysts bearing [(N)-imidoylamidine] ligands; influence of the presence of pyridine and pentafluorophenyl groups in ligand backbone on the reactivity in ethylene polymerizations | es_CL |
Document type | dc.type | Artículo de revista |
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