Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Heat Capacity and Standard Thermodynamic Functions of Triphenylantimony Dimethacrylate over the Temperature Range from (0 to 400) K

Markin, A. V.[Alexey V.], Letyanina, I. A.[Irina A.], Ruchenin, V. A.[Vitaly A.], Smirnova, N. N.[Natalia N.], Gushchin, A. V.[Alexey V.], Shashkin, D. V.[Dmitry V.]
J. Chem. Eng. Data 2011, 56, 9, 3657-3662
ABSTRACT
Heat capacities of triphenylantimony dimethacrylate Ph3Sb(O2CCMe-CH2)2 were measured by precision adiabatic vacuum calorimetry over the temperature range from T = (6 to 335) K and by differential scanning calorimetry over the temperature range from T = (300 to 470) K. The melting of the sample was observed within the above temperature range. The melting was accompanied by a compound decomposition. On the obtained data, the standard thermodynamic functions of molar heat capacity Cp,mo, enthalpy Ho(T) Ho(0), entropy So(T), and Gibbs energy Go(T) Ho(0) of Ph3Sb(O2CCMe-CH2)2 were calculated over the range from T = (0 to 400) K. The low-temperature (T less than 50 K) heat capacity dependence was analyzed on the basis of Debye's heat capacity theory of solids and its multifractal model, so the characteristic temperatures and the fractal dimension were determined, and some conclusions about the structure topology were made. The standard entropy of formation at T = 298.15 K of Ph3Sb(O2CCMe-CH2)2(cr) was calculated.
Compounds
# Formula Name
1 C26H25O4Sb triphenyl-.lambda.5-stibanediyl bis(2-methylacrylate)
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Vacuum adiabatic calorimetry
  • 46
  • POMD
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Vacuum adiabatic calorimetry
  • 141
  • POMD
  • 1
  • Molar enthalpy, kJ/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Vacuum adiabatic calorimetry
  • 46
  • POMD
  • 1
  • Molar entropy, J/K/mol ; Crystal
  • Temperature, K; Crystal
  • Pressure, kPa; Crystal
  • Crystal
  • Vacuum adiabatic calorimetry
  • 46