Phonon density of states and thermodynamic properties of Eu2(C11H19O2)6

In the work, the phonon density of states of europium dipivaloylmethanate was calculated based on the experimental low-temperature heat capacity, and basic characteristic temperatures related to the moments of the g(ω) were obtained. The molar thermodynamic functions of Eu2(C11H19O2)6 at constant volume up to the melting point of 464 K were calculated: heat capacity, entropy, internal energy, and Helmholtz energy. The zero-point energy was determined, and total internal energy was obtained. Accuracy of the obtained results was estimated. The approach used to obtain the properties of Eu2(C11H19O2)6 is general, it can be used to study a wide range of solids.