2H NMR and X-ray studies of a substance exhibiting crystal-like smectic phases (Articolo in rivista)

Type
Label
  • 2H NMR and X-ray studies of a substance exhibiting crystal-like smectic phases (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Calucci, L.; Geppi, M.; Przedmojski, J.; Czub, J.; Urban, S.; Dabrowski, R. (2007)
    2H NMR and X-ray studies of a substance exhibiting crystal-like smectic phases
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Calucci, L.; Geppi, M.; Przedmojski, J.; Czub, J.; Urban, S.; Dabrowski, R. (literal)
Pagina inizio
  • 109 (literal)
Pagina fine
  • 119 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 465 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Physics Institute, Jagellonian Univesity, Krakov, Polonia; IPCF-CNR, PIsa; Dipartimento di Chimica e Chimica Industriale, Università di Pisa; (literal)
Titolo
  • 2H NMR and X-ray studies of a substance exhibiting crystal-like smectic phases (literal)
Abstract
  • DSC, polarizing optical microscopy and X-ray diffractometry were used to investigate the mesomorphic behavior of 4-n-butyl-4'-acetyl-biphenyl, which resulted to exhibit a smectic E and, possibly, a smectic K phase. Addnl., 2H NMR spectroscopy was applied on a selectively deuterated sample to study the properties of alignment of the mesophases within a magnetic field, as well as to characterize mol. dynamics. Two motional processes were found to be active in the smectic E phase, namely fast ƒà-flips of the benzene rings and mol. self-diffusion about the herringbone bidimensional lattice of the layers. No mol. overall diffusional motions were obsd. by either 2H NMR spectroscopy or dielec. relaxation measurements. (literal)
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