The thermal motion of gold atoms in metal cluster compounds as determined by Mössbauer and specific heat

  • H. H. A. Smit
  • R. C. Thiel
  • L. J. de Jongh
Conference paper

Abstract

197Au Mössbauer effect spectroscopy and specific heat measurements have been performed as a function of temperature on three gold polynuclear cluster compounds, [Au9(PPh3)8](NO3)3, Au11(PPh3)7(SCN)3, and Au55(PPh3)12Cl6. The Mössbauer data yield information on the vibrational motions of the various distinguishable Au sites, as well as on the motion of the clusters as a whole. The Mössbauer and the specific heat data are successfully described by a superposition of inter- and intra-cluster vibrations. The latter are determined by calculating numerically the normal modes of vibration of the metal cores.

PACS

33.40 63.20 65.40 

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Copyright information

© Springer-Verlag 1989

Authors and Affiliations

  • H. H. A. Smit
    • 1
  • R. C. Thiel
    • 1
  • L. J. de Jongh
    • 1
  1. 1.Kamerlingh Onnes LaboratoriumRijksuniversiteit te LeidenLeidenThe Netherlands

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