Collective and molecular motions of fluorinated liquid crystals by means of F-19 Fast Field-Cycling NMR relaxometry (Articolo in rivista)

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Label
  • Collective and molecular motions of fluorinated liquid crystals by means of F-19 Fast Field-Cycling NMR relaxometry (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.cplett.2012.08.031 (literal)
Alternative label
  • Bubici, Salvatore; Calucci, Lucia; Ferrante, Gianni; Geppi, Marco (2012)
    Collective and molecular motions of fluorinated liquid crystals by means of F-19 Fast Field-Cycling NMR relaxometry
    in Chemical physics letters (Print); ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, AMSTERDAM (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bubici, Salvatore; Calucci, Lucia; Ferrante, Gianni; Geppi, Marco (literal)
Pagina inizio
  • 27 (literal)
Pagina fine
  • 31 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0009261412009487 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 549 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Salvatore Bubici e Gianni Ferrante: Stelar srl, I-27036, Mede (PV) Italy Lucia Calucci: CNR Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti OrganoMetallici, Area della Ricerca di Pisa, I-56124 Pisa, Italy Marco Geppi: Universit√† di Pisa, Dipartimento di Chimica e Chimica Industriale, I-56126 Pisa, Italy (literal)
Titolo
  • Collective and molecular motions of fluorinated liquid crystals by means of F-19 Fast Field-Cycling NMR relaxometry (literal)
Abstract
  • F-19 Fast Field-Cycling (FFC) NMR relaxometry was applied for the first time for the investigation of the dynamics of a liquid crystal. Longitudinal F-19 relaxation rates were measured at different temperatures in the nematic phase of 4DBF2 in the frequency range between about 9.5 kHz and 33 MHz. The observed relaxation dispersions could be well reproduced using a simple model in which contributions due to order director fluctuations and molecular rotational diffusion motions were considered. The obtained results indicate F-19 FFC NMR relaxometry as a valuable method for the investigation of molecular and collective motions of fluorinated liquid crystals. (literal)
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