Ru/Pd Complex and Its Monometallic Fragments as Catalysts for Norbornene Polymerization via ROMP and Addition

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Federal de Uberlândia (UFU)-
Autor(es): dc.contributorUniversidade Federal de Catalão-
Autor(es): dc.creatorCruz, Thaís R.-
Autor(es): dc.creatorMasson, Gustavo H. C.-
Autor(es): dc.creatorAmorim, Kelly A. E.-
Autor(es): dc.creatorMachado, Antonio E. H.-
Autor(es): dc.creatorGoi, Beatriz E.-
Autor(es): dc.creatorCarvalho-Jr, Valdemiro P.-
Data de aceite: dc.date.accessioned2025-08-21T20:53:06Z-
Data de disponibilização: dc.date.available2025-08-21T20:53:06Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/catal12101111-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246199-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246199-
Descrição: dc.descriptionThe [Ru(PPh3)2Cl-piperidine(4-aminomethyl)] complex (mono-Ru) was synthesized from [Ru(PPh3)3Cl2] and 4-(aminomethyl)piperidine, whereas the [(PPh3)PdCl(Shiff-pip)] complex (mono-Pd) was obtained by reacting [Pd(PPh3)2Cl2] with its respective Schiff base ligand, both at a 1:1 molar ratio. The heterobimetallic [RuCl2(PPh3)2](μ-Schiff)Pd(PPh3)Cl] complex (Ru/Pd) was synthesized via a one-pot, three-component reaction of mono-Ru, [(Pd(PPh3)2Cl2] and salicylaldehyde. All complexes were fully characterized by FTIR, UV-Vis, and NMR spectroscopy, as well as elemental analysis, MALDI-TOF mass spectrometry, cyclic voltammetry, and computational studies. Ru/Pd was able to polymerize norbornene (NBE) by two different mechanisms: ROMP and vinyl polymerization. The Ru fragment was active for ROMP of NBE, reaching yields of 68 and 31% for mono-Ru and Ru/Pd, respectively, when the [NBE]/[Ru] = 3000 molar ratio and 5 μL EDA addition were employed at 50 °C. The poly(norbornene) (polyNBE) obtained presented an order of magnitude of 104 g mol−1 and Ð values between 1.48 and 1.79. For the vinyl polymerization of NBE, the Pd fragment was active using MAO as a cocatalyst, reaching a yield of 47.0% for Ru/Pd and quantitative yields for mono-Pd when [Al]/[Pd] = 2500 and [NBE]/[Pd] = 20,000 molar ratios were employed, both at 60 °C.-
Descrição: dc.descriptionFaculdade de Ciências e Tecnologia UNESP—Univ. Estadual Paulista, SP-
Descrição: dc.descriptionInstituto de Química de São Carlos Universidade de São Paulo, SP-
Descrição: dc.descriptionInstituto de Química Universidade Federal de Uberlândia, MG-
Descrição: dc.descriptionInstituto de Física Programa de Pós-Graduação em Ciências Exatas e Tecnológicas Universidade Federal de Catalão, GO-
Descrição: dc.descriptionFaculdade de Ciências e Tecnologia UNESP—Univ. Estadual Paulista, SP-
Idioma: dc.languageen-
Relação: dc.relationCatalysts-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbifunctional catalysts-
Palavras-chave: dc.subjectheterobimetallic complexes-
Palavras-chave: dc.subjectmetathesis-
Palavras-chave: dc.subjectpalladium-
Palavras-chave: dc.subjectruthenium-
Título: dc.titleRu/Pd Complex and Its Monometallic Fragments as Catalysts for Norbornene Polymerization via ROMP and Addition-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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