The Role of the ortho-Methoxy Group in Pd(II) Diphosphine Complexes Applied in the Copolymerization of CO and Ethene (Abstract/Poster in atti di convegno)

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  • The Role of the ortho-Methoxy Group in Pd(II) Diphosphine Complexes Applied in the Copolymerization of CO and Ethene (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • Garcia Suarez, Eduardo; Oberhauser, Werner; Bianchini, Claudio; Meli, Andrea; Claver Carmen (2005)
    The Role of the ortho-Methoxy Group in Pd(II) Diphosphine Complexes Applied in the Copolymerization of CO and Ethene
    in XVIth FECHEM Conference on Organometallic Chemistry, Budapest, Ungaria, 03.09-08.09.
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Garcia Suarez, Eduardo; Oberhauser, Werner; Bianchini, Claudio; Meli, Andrea; Claver Carmen (literal)
Note
  • Poster (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • ICCOM-CNR Universitat Rovira i Virgili, Tarragona, Spain (literal)
Titolo
  • The Role of the ortho-Methoxy Group in Pd(II) Diphosphine Complexes Applied in the Copolymerization of CO and Ethene (literal)
Abstract
  • Drent et al. have shown that the catalytic CO/ethene copolymerization activity of palladium(II) complexes with diphosphines of the type Ar2P(CH2)nPAr2 depends on the backbone chain length and the substituents on the phosphorous donor atoms.[1] Within the different substituents on the phenyl ring of chelating diphosphines the ortho-methoxy group is one of the most important in this kind of catalysis. Since the role of the ortho-methoxy group has not been fully understood yet, we compare the catalytic activity of palladium(II) complexes with 1,2-bis(diphenylphosphino) ethane (dppe), 1,2-bis(di-(o-methoxyphenyl)phosphino) ethane (MeO-dppe), 1,3-bis(diphenylphosphino) propane (dppp) and 1,3-bis(di-(o-methoxyphenyl)phosphino) propane (MeO-dppp) under identical conditions in the copolymerization of CO and ethene. In addition to catalytic investigations we studied comparable Pd(II) compounds by means of single crystal X-ray structure analyses, IR- as well as high pressure NMR-spectroscopy in order to understand the positive effect induced by the ortho-methoxy moiety. REFERENCE: [1] Drent, E., Budzelaar, P. H. M. Chem. Rev., 1996, 96, 663. (literal)
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