Low-temperature heat capacity of Al(C₁₁H₁₉O₂)₃

Highlights: • The temperature dependence of heat capacity of Al(C₁₁H₁₉O₂)₃ has been measured. • The experimental data were used to calculate standard thermodynamic functions. • The thermodynamic functions at 298.15 K are presented. - Abstract: The heat capacity of Al(C₁₁H₁₉O₂)₃ was measured by adiabatic-shield calorimetry in the temperature range 6–320 K; no transition or thermal anomalies were found. The thermodynamic functions (entropy, enthalpy, and reduced Gibbs free energy) at 298.15 K have been calculated using the obtained experimental heat capacity data. The obtained standard values are as follows: C°_p,m = (882.3 ± 1.3) J mol⁻¹ K⁻¹, Δ₀^298.15S°_m = J(980 ± 2) mol⁻¹ K⁻¹, Δ₀^298.15H°_m = (145.1 ± 0.2) kJ mol⁻¹, Φ°_m = (493.4 ± 1.7) J mol⁻¹ K⁻¹