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Intermolecular bond stability of C60 dimers and 2D pressure-polymerized C60
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1998 (English)In: AIP Conference Proceedings Vol. 442: Electronic Properties of Novel Materials - Progress in Molecular nanostructures. Proceedings of the XII International Winter School on Electronic Properties of Novel Materials, Kirchberg 1998, Woodbury, NY: American Institute of Physics (AIP) , 1998, 194-197 p.Conference paper, Published paper (Refereed)
Abstract [en]

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 +/- 0.1 eV (dimer) and 1.9 +/- 0.2 eV (polymer). These results are compared to previous data for 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.

Place, publisher, year, edition, pages
Woodbury, NY: American Institute of Physics (AIP) , 1998. 194-197 p.
Series
AIP Conference Proceedings, ISSN 0094-243X ; 442
Keyword [en]
Fullerenes, C60, thermal expansion, high pressure synthesis, fullerene polymer, polymer breakdown, dimer, excitation energy, thermally activated process
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-23414ISBN: 1-56396-808-8 (print)OAI: oai:DiVA.org:umu-23414DiVA: diva2:223797
Note
Editors: Hans Kuzmany, Jörg Fink, Michael Mehring and Siegmar Roth.Available from: 2009-06-15 Created: 2009-06-15 Last updated: 2010-01-26

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