Russian Journal of Physical Chemistry A

, Volume 86, Issue 8, pp 1189–1195

Thermodynamic characteristics of triphenylantimony diacrylate

  • I. A. Letyanina
  • A. V. Markin
  • N. N. Smirnova
  • A. V. Gushchin
  • D. V. Shashkin
Chemical Thermodynamics and Thermochemistry

Abstract

The heat capacity of triphenylantimony diacrylate Ph3Sb(O2CCH=CH2)2 was studied in an adiabatic vacuum calorimeter at 6–350 K and differential scanning calorimeter at 330–450 K. Melting was revealed at these temperatures; the melting point was estimated at 428.4 ± 0.5 K. It was accompanied by the partial decomposition of the substance. The low-temperature (20 K ≤ T ≤ 50 K) heat capacity was treated using the Debye theory of the heat capacity of solids and its multifractal model. The type of the structure topology was determined. The standard thermodynamic functions Cpo(T), Ho(T) − Ho(0), So(T), and Go(T) − Ho(0) of the compound in the crystal state were calculated from the obtained experimental data in the range from T → 0 to 428 K. The standard entropy of the formation of the crystalline compound Ph3Sb(O2CCH=CH2)2 at T = 298.15 K was determined.

Keywords

thermodynamic properties triphenylantimony diacrylate calorimetry 

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • I. A. Letyanina
    • 1
  • A. V. Markin
    • 1
  • N. N. Smirnova
    • 1
  • A. V. Gushchin
    • 1
  • D. V. Shashkin
    • 1
  1. 1.Lobachevskii Nizhni Novgorod State UniversityNizhni NovgorodRussia

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