Multinuclear NMR Spectroscopic Characterization of a Fluorinated Enolatoimine Titanium Polymeryl Species in the Living Ethylene-coNorbornene Polymerization (Articolo in rivista)

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  • Multinuclear NMR Spectroscopic Characterization of a Fluorinated Enolatoimine Titanium Polymeryl Species in the Living Ethylene-coNorbornene Polymerization (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/om500078r (literal)
Alternative label
  • Boccia A. C.; Scalcione G.; Boggioni L.; Tritto I. (2014)
    Multinuclear NMR Spectroscopic Characterization of a Fluorinated Enolatoimine Titanium Polymeryl Species in the Living Ethylene-coNorbornene Polymerization
    in Organometallics (Online); ACS, American chemical society, Washington, DC (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Boccia A. C.; Scalcione G.; Boggioni L.; Tritto I. (literal)
Pagina inizio
  • 2510 (literal)
Pagina fine
  • 2516 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/pdf/10.1021/om500078r (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 33 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Note
  • Scopus (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per lo Studio delle Macromolecole, Consiglio Nazionale delle Ricerche (ISMAC-CNR) Via E. Bassini, 15, Milano 20133, Italy (literal)
Titolo
  • Multinuclear NMR Spectroscopic Characterization of a Fluorinated Enolatoimine Titanium Polymeryl Species in the Living Ethylene-coNorbornene Polymerization (literal)
Abstract
  • A multinuclear NMR spectroscopic study was performed to assess the nature of species responsible for living ethylene (E)-norbornene (N) copolymerization reaction using the fluorinated enolatoimine titanium complex [Ti(?2-N,O-{2,6-F2C6H3N?C(Me)C(H)C(CF3)O})2Cl2] (1) activated with dry methylaluminoxane (d-MAO). The analysis involved (i) the catalytic system (1 with MAO); (ii) the species formed after simultaneous addition of 13C-enriched ethylene and norbornene and after further addition of 13C-enriched ethylene; and (iii) species formed during norbornene homopolymerization. The results supported the existence of noncovalent interactions of ortho-fluoroaryl substituents with the titanium center, which contribute to the living character of the copolymerization reaction. (literal)
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