Heat capacity and standard thermodynamic functions of the fullerenol C60(OH)24

Abstract In the present investigation, the heat capacity of fullerenol C60(OH)24 was measured by precision adiabatic and differential scanning calorimetry over the temperature range from T = (6 to 670) K. The keto-enol tautomerism was revealed in the temperature range T = (355−575) K and enthalpy of transition was determined. The standard thermodynamic functions: molar heat capacity Cp°, enthalpy [H°(T)−H°(0)], entropy S°(T), and Gibbs energy [G°(T)−H°(0)] of the fullerenol were determined over the temperature range from T = (6 to 350) K from the obtained experimental results. Also, DFT calculations of heat capacities were performed. The standard thermodynamic properties of the investigated fullerenol were compared to other fullerene derivatives.