Abstract
The thermal properties of C60 and C70 fullerenes and fullerites have been studied by X-ray structural analysis and UV spectroscopy. It was shown that C70 fullerite is stabler than C60 fullerite (by ~150°C) due to the different geometry of the fullerenes and stronger intermolecular interactions. The experimental results are given a qualitative and quantitative interpretation based on the calculation of the interaction energy between two fullerene molecules.
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ACKNOWLEDGMENTS
The authors are grateful to Aksenova V.V. for obtaining UV spectroscopic data.
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The work has state registration, no. АААА-А17-117022250039-4.
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Nikonova, R.M., Lad’yanov, V.I., Rekhviashvili, S.S. et al. Thermal Stability of C60 and C70 Fullerites. High Temp 59, 179–183 (2021). https://doi.org/10.1134/S0018151X21020103
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DOI: https://doi.org/10.1134/S0018151X21020103