Journal of Thermal Analysis and Calorimetry

, Volume 82, Issue 1, pp 125–127

Thermodynamic properties of the molecular complexes of C60with monosubstituted naphthalenes

  • Natalia V. Avramenko
  • E. B. Stukalin
  • M. V. Korobov
Article

DOI: 10.1007/s10973-005-0852-x

Cite this article as:
Avramenko, N., Stukalin, E. & Korobov, M. J Therm Anal Calorim (2005) 82: 125. doi:10.1007/s10973-005-0852-x

Summary

The binary systems of C60with α-methyl- and α-chloronaphthalene have been studied by means of differential scanning calorimetry. C60was found to form the molecular complex of the van der Waals type with α-methylnaphthalene which melts incongruently below the boiling point of the solvent at temperature 382.7±3.0 K. The enthalpy of the desolvation reaction is 14.1±0.5 kJ mol-1of C60. The molar ratio of fullerene to solvent in the solvate is 1:1.5. In the system C60-α-chloronaphthalene a two-stage incongruent melting process has been observed at temperatures 314.1±4.6 K and 375.7±7.4 K with the enthalpies 8.1±2.6 kJ mol-1and 11.6±1.0 kJ mol-1, respectively. The composition of the most solvated phase equilibrated with the saturated solution at room temperature and below the first of the incongruent melting transitions was determined as 1:1.5. Based on the results obtained the thermodynamic characteristics of the incongruent melting reactions have been revealed and influence of solvate formation on solubility of C60has been discussed.

stability DSC thermodynamics solvates fullerenes 

Copyright information

© Springer-Verlag/Akadémiai Kiadó 2005

Authors and Affiliations

  • Natalia V. Avramenko
    • 1
  • E. B. Stukalin
    • 2
  • M. V. Korobov
    • 3
  1. 1.Department of Chemistry, Moscow State University,
  2. 2.Department of Chemistry, Moscow State University,
  3. 3.Department of Chemistry, Moscow State University,

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