Journal of Solution Chemistry

, Volume 22, Issue 11, pp 1063–1071 | Cite as

Dielectric properties of solutions of antimony (III) halides in methanol

  • G. La Manna
  • M. L. Turco Liveri
  • V. Turco Liveri
  • F. Saiano
  • G. Alonzo
Article

Abstract

The complex permittivities obtained by time domain reflectometry (TDR) measurements in the frequency range 0.1–15 GHz are reported for solutions of SbF3, SbCl3 and SbBr3 in methanol at 25°C. By increasing the concentration of the solutes, a marked increase of the main relaxation time and of the static permittivity of methanol is observed. These effects have been attributed to the ability of antimony (III) halides to strengthen the hydrogen bonding in methanol and to promote the shift of the dynamic equilibria among the various populations of hydrogen bonded methanol aggregates toward those characterized by a parallel orientation of neighboring dipoles. A second relaxation, occurring at low frequencies, was attributed to the rotational dynamics of the solvated solute molecules.

Key Words

Antimony trihalides methanol dielectric properties hydrogen bonded structures 

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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • G. La Manna
    • 1
  • M. L. Turco Liveri
    • 1
  • V. Turco Liveri
    • 1
  • F. Saiano
    • 2
  • G. Alonzo
    • 3
  1. 1.Dipartimento di Chimica FisicaUniversità di PalermoPalermoItaly
  2. 2.Istituto di Chimica e Tecnologia dei Prodotti NaturaliCNRPalermoItaly
  3. 3.Dipartimento di Chimica InorganicaUniversità di PalermoPalermoItaly

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