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Intermolecular bond stability of C60 dimers and 2D pressure-polymerized C60

P. Nagel·V. Pasler·S. Lebedkin·C. Meingast·B. Sundqvist·T. Tanaka·K. Komatsu
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Abstract

The thermal stability of C60 dimers and 2D pressure-polymerized C60 is studied using high-resolution capacitance dilatometry. The transformation of both the dimer and the polymer phases back to 'normal' C60 is excellently described by a simple thermally activated process, with activation energies of 1.75 1 0.1 eV (dimer) and 1.9 1 0.2 eV (polymer). These results are compared to previous data of 1D-polymerized C60 and photo-polymerized C60. The thermal expansivity of the 2D-polymer phase is as much as a factor of ten smaller than that of pure C60 and approaches values for diamond.

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P. Nagel, V. Pasler, S. Lebedkin, C. Meingast, B. Sundqvist, T. Tanaka, K. Komatsu. 1998-04-22. Intermolecular bond stability of C60 dimers and 2D pressure-polymerized C60. https://doi.org/10.1063/1.56455

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