New bis(azolylcarbonyl)pyridine chromium(III) complexes as initiators for ethylene polymerization

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dc.contributor.authorHurtado, John
dc.contributor.authorUgarte, Javiera
dc.contributor.authorRojas, Rene
dc.contributor.authorValderrama, Mauricio
dc.contributor.authorMac Leod Carey, Desmond
dc.contributor.authorMunoz Castro, Alvaro
dc.contributor.authorArratia Perez, Ramiro
dc.contributor.authorFroehlich, Roland
dc.date.accessioned2024-01-10T12:40:48Z
dc.date.available2024-01-10T12:40:48Z
dc.date.issued2011
dc.description.abstractReaction of 2,6-pyridinedicarbonyl dichloride with 3,5-dimethylpyrazole and 1H-indazole, respectively, yield the tridentate ligands 2,6-bis(3,5-dimethylpyrazol-1-ylcarbonyl)pyridine (1) and 2,6-bis(indazol-1-ylcarbonyl)pyridine (2). The molecular structure of the new compound (2) was determined by single-crystal X-ray diffraction. These ligands react with CrCl3(THF)(3) in THF to form neutral complexes of general formula [CrCl3{2,6-bis(azolylcarbonyl)pyridine-N,N,N}] (3, 4) which were isolated in high yield as air stable green solids and characterized by elemental analysis, magnetic moment, IR, and mass spectroscopies. Theoretical calculations predict that the thermodynamically preferred structure of the complexes is the fac configuration. After reaction with methylaluminoxane (MAO) the chromium(III) complexes are active for the polymerization of ethylene. (C) 2011 Elsevier B.V. All rights reserved.
dc.description.funderFONDECYT
dc.description.funderUNAB
dc.description.funderCONICYT
dc.description.funderVRAI
dc.description.funderPontificia Universidad Catolica de Chile
dc.fechaingreso.objetodigital25-03-2024
dc.format.extent6 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.ica.2011.08.065
dc.identifier.eissn1873-3255
dc.identifier.issn0020-1693
dc.identifier.urihttps://doi.org/10.1016/j.ica.2011.08.065
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77350
dc.identifier.wosidWOS:000296538000032
dc.information.autorucQuímica;Hurtado J;S/I;175494
dc.information.autorucQuímica;Rojas R;S/I;1001533
dc.information.autorucQuímica;Ugarte J;S/I;149352
dc.information.autorucQuímica;Valderrama M;S/I;98729
dc.issue.numero1
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final223
dc.pagina.inicio218
dc.publisherELSEVIER SCIENCE SA
dc.revistaINORGANICA CHIMICA ACTA
dc.rightsacceso restringido
dc.subjectChromium
dc.subjectTridentate ligands
dc.subjectTheoretical studies
dc.subjectEthylene polymerization
dc.subjectX-RAY STRUCTURES
dc.subjectCOPPER(II) COMPLEXES
dc.subjectTRIDENTATE LIGANDS
dc.subjectMETAL-COMPLEXES
dc.subjectCATALYSTS
dc.subjectOLIGOMERIZATION
dc.subjectIRON
dc.subjectENERGY
dc.subjectAPPROXIMATION
dc.subjectBEHAVIOR
dc.titleNew bis(azolylcarbonyl)pyridine chromium(III) complexes as initiators for ethylene polymerization
dc.typeartículo
dc.volumen378
sipa.codpersvinculados175494
sipa.codpersvinculados1001533
sipa.codpersvinculados149352
sipa.codpersvinculados98729
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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