Raman and kinetic evidence of NO2+ ion in solid acid catalyst (Articolo in rivista)

Type
Label
  • Raman and kinetic evidence of NO2+ ion in solid acid catalyst (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S1566-7367(00)00004-2 (literal)
Alternative label
  • Marziano, N.C.a , Ronchin, L.a, Ronchin, S.b, Ferrari, M.c (2000)
    Raman and kinetic evidence of NO2+ ion in solid acid catalyst
    in Catalysis communications (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Marziano, N.C.a , Ronchin, L.a, Ronchin, S.b, Ferrari, M.c (literal)
Pagina inizio
  • 25 (literal)
Pagina fine
  • 31 (literal)
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  • 1 (literal)
Rivista
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  • 7 (literal)
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  • 1-4 (literal)
Note
  • Scopu (literal)
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  • a INFM and Chemistry Department, University of Venice, DorsoDuro 2137, 30123 Venice, Italy; b INFM and Department of Physics, University of Trento, Sommarive 14, 38050 Trento, Italy; c CNR-CeFSA, Sommarive 14, 38050 Trento, Italy (literal)
Titolo
  • Raman and kinetic evidence of NO2+ ion in solid acid catalyst (literal)
Abstract
  • Samples of H2SO4/SiO2 loaded with HNO3 and analysed by Raman spectroscopy exhibit the band of the NO2 + ion, which is formed by the protonation-dehydration equilibrium of HNO3 in strong acidic media. The effectiveness of NO2 + as a nitrating species is tested in the nitration of aromatic compounds towards substrates with high acid requirements for the conversion reagents-products. The acidic properties of the acid systems used as catalysts are also described, and the thermodynamic parameters related to the acid-base proton transfer process are discussed. (literal)
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