Thermal stability of carbinofullerenes C$_{38}$, C$_{62}$ and C$_{64}$

The thermal stability of recently predicted carbinofullerenes C$_{38}$, C$_{62}$ and C$_{64}$ was examined using the molecular dynamics method. Their decomposition channels and temperature dependences of the lifetime were characterized. The activation energies and frequency factors in the Arrhenius law were determined. New isomers of carbinofullerenes C$_{38}$ and C$_{62}$, which are more thermally stable than the initial carbinofullerenes, were found.