Structural phase transition in [NH3(CH2)5NH3]BiCl5: thermal and vibrational studies

Authors

  • H. Jeghnou,

    1. Laboratoire de Physico-Chimie des Matériaux Inorganiques, Université Ibn Tofail, Faculté des Sciences, B.P.133 Kénitra, Maroc
    Search for more papers by this author
  • A. Ouasri,

    1. Laboratoire de Physico-Chimie des Matériaux Inorganiques, Université Ibn Tofail, Faculté des Sciences, B.P.133 Kénitra, Maroc
    Search for more papers by this author
  • A. Rhandour,

    Corresponding author
    1. Laboratoire de Physico-Chimie des Matériaux Inorganiques, Université Ibn Tofail, Faculté des Sciences, B.P.133 Kénitra, Maroc
    • Laboratoire de Physico-Chimie des Matériaux Inorganiques, Université Ibn Tofail, Faculté des Sciences, B.P.133 Kénitra, Maroc.
    Search for more papers by this author
  • M. C. Dhamelincourt,

    1. Laboratoire de Spectrochimie Infrarouge et Raman, U.M.R.-C.N.R.S. 8516, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, 59655 VILLENEUVE D'ASCQ CEDEX, France
    Search for more papers by this author
  • P. Dhamelincourt,

    1. Laboratoire de Spectrochimie Infrarouge et Raman, U.M.R.-C.N.R.S. 8516, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, 59655 VILLENEUVE D'ASCQ CEDEX, France
    Search for more papers by this author
  • A. Mazzah,

    1. Laboratoire de Spectrochimie Infrarouge et Raman, U.M.R.-C.N.R.S. 8516, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, 59655 VILLENEUVE D'ASCQ CEDEX, France
    Search for more papers by this author
  • P. Roussel

    1. Laboratoire de Cristallochimie et Physicochimie du Solide (LCPS), CNRS UMR 8012, Ecole Nationale Supérieure de Chimie de Lille, Bat C7a–BP 108, F-59652 Villeneuve d'Ascq, France
    Search for more papers by this author

Abstract

An x-ray diffraction study carried out on the pentylenediammonium pentachlorobismuthate (III) compound [NH3(CH2)5NH3]BiCl5 indicated that it is orthorhombic with a P212121(Z = 4) space group. Differential scanning calorimetry (DSC), differential thermal analysis (DTA) and thermogravimetric analysis (TGA) were also made, which showed that this compound undergoes a unique phase transition at high temperatures. The infrared and Raman spectra recorded at room temperature were interpreted on the basis of data published in the literature. The Raman bands observed below 300 cm−1 are very characteristic of the anions, which are made of isolated (BiCl52− )n units composed of BiCl63− octahedra. Raman spectra recorded at various temperatures confirmed the contribution to the phase-transition mechanism of both the anion and cation motions. Copyright © 2005 John Wiley & Sons, Ltd.

Ancillary