Dynamics of orientationally disordered mixed crystal sharing Cl-adamantane and CN-adamantane

  • Martinez-Garcia J
  • Capaccioli S
  • Diez S
 et al. 
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Abstract

Orientationally disordered (OD) mixed crystals formed between cyanoadamantane (CN-A) and chloroadamantane (Cl-A) have been thermodynamically characterized by means of thermal analysis and X-ray diffraction. The dynamics of these OD mixed crystals has been studied by means of broad band dielectric spectroscopy. Results evidence that dynamics of the α-relaxation process associated with the overall molecular tumbling slows down when molecules of CN-A are substituted by molecules of Cl-A. © 2009 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Calorimetry
  • Dielectric properties
  • Electric modulus
  • Fragility
  • Glass transition
  • Relaxation
  • Structural relaxation
  • Thermodynamics
  • X-ray diffraction

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Authors

  • Simone CapaccioliUniversita degli Studi di Pisa Dipartimento di Fisica Enrico Fermi

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  • J. C. Martinez-Garcia

  • S. Diez

  • J. Ll Tamarit

  • M. Barrio

  • N. Veglio

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