Hydrated Complexes of Atmospheric Interest: Rotational Spectrum of Diacetyl-Water (Articolo in rivista)

Type
Label
  • Hydrated Complexes of Atmospheric Interest: Rotational Spectrum of Diacetyl-Water (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jp903022x (literal)
Alternative label
  • Laura B. Favero; Walther Caminati (2009)
    Hydrated Complexes of Atmospheric Interest: Rotational Spectrum of Diacetyl-Water
    in The journal of physical chemistry. A; AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Laura B. Favero; Walther Caminati (literal)
Pagina inizio
  • 14308 (literal)
Pagina fine
  • 14311 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pubs.acs.org/doi/abs/10.1021/jp903022x (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 113 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 52 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto per lo Studio dei Materiali Nanostrutturati (ISMN, Sezione di Bologna), Consiglio Nazionale delle Ricerche (CNR), Via Gobetti 101, I-40129 Bologna, Italy; Dipartimento di Chimica \"G. Ciamician\" dell' Universit√† di Bologna, Via Selmi 2, I-40126 Bologna, Italy; (literal)
Titolo
  • Hydrated Complexes of Atmospheric Interest: Rotational Spectrum of Diacetyl-Water (literal)
Abstract
  • The rotational spectrum of the molecular complex diacetyl-water has been measured by pulsed jet Fourier transform microwave (FTMW) spectroscopy. The water molecule acts as an electrofore and induces a dipole moment when combined with nonpolar diacetyl. Only one conformer has been observed, corresponding to the global minimum. Its shape is unambiguously established: the water moiety is linked asymmetrically to the organic molecule; it behaves as a proton donor to one of its oxygen atoms and interferes with the internal rotation of adjacent methyl group through a C-H center dot center dot center dot O interaction. Each rotational transition appears as a quintuplet, due to the internal rotation of the two methyl groups, which are nonequivalent in the adduct. From the analysis of the observed splittings, the V(3) barriers to the internal rotation of the two methyl groups have been determined to be 3.81(2) and 4.11(2) kJ/mol, respectively. (literal)
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