Temperature dependence of the thermodynamic parameters of cobalt(II) clathrochelate: X-ray diffraction and calorimetric characteristics of the low temperature structural phase ... View Full Text


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Article Info

DATE

2012-03

AUTHORS

I. E. Paukov, Yu. A. Kovalevskaya, V. I. Ovcharenko, G. V. Romanenko, Ya. Z. Voloshin

ABSTRACT

The temperature dependence of heat capacity of the polycrystalline sample of cobalt(II) clathrochelate in a range of 6–300 K is studied. Based on the smoothed dependence Cp(T), the entropy and enthalpy values in a temperature range of 8–300 K and their standard values at 298.15 K are calculated. In the Cp(T) curve in a range of 50–70 K, a process is recorded whose entropy and enthalpy are 1.2 J·(K·mol−1) and 68 J·mol−1 respectively. A comparison of the results with the data of a multitemperature X-ray diffraction study makes it possible to attribute this process to the structural phase transition. More... »

PAGES

388-392

References to SciGraph publications

  • 2006-07. On the spline approximation of low-temperature calorimetry data in RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1134/s0022476612020278

    DOI

    http://dx.doi.org/10.1134/s0022476612020278

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