Thermodynamic properties of C<sub>60</sub>and C<sub>70</sub>fullerenes
Abstract
The most reliable values of the basic thermodynamic parameters of the C60 and C70 fullerenes are recommended based on the analysis of the published data and original calculations, viz., enthalpies of formation in the solid and gaseous states, saturated vapour pressures, enthalpies of sublimation, enthalpies of phase transitions, heat capacities, entropies in the condensed state and heat capacities and entropies in the ideal gas state. The factors influencing the results of thermodynamic studies of fullerenes are discussed. Various aspects of crystal structure determination, PVT-relationships and frequencies of normal modes of the C60 and C70 fullerenes are considered in order to interpret and correlate the thermodynamic data and extend them to a wide temperature range. The bibliography includes 135 references.