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Orientational disorder and the p-T phase diagram of fullerenes
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
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1995 (English)In: Fullerenes: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials, volume 2: Proceedings of the 187th ECS Meeting, Symposium Fullerenes: Chemistry, Physics, and New Directions VII, Reno 1995, Pennington, NJ: The Electrochemical Society , 1995, 891-905 p.Conference paper, Published paper (Refereed)
Abstract [en]

The translational and orientational structures of fullerenes are very sensitive to pressure, p, because of the weak intermolecular potentials. We have recently carried out high-p studies of the thermal conductivity lambda and the bulk modulus B of C60 and C70, and we show here how the p-T phase diagrams of these materials can be mapped from data for B and lambda and a knowledge of the structures at zero pressure. We discuss how B and lambda are modified by translational, rotational and orientational disorder in the materials, mainly showing examples related to the orientational substructure and its evolution with T and p in C60. We also discuss briefly the structures and phase diagrams of C70 and C61H2, and we show preliminary experimental results suggesting that the structure of high-p, high-T treated C60 is probably not polymeric as recently suggested by several groups.

Place, publisher, year, edition, pages
Pennington, NJ: The Electrochemical Society , 1995. 891-905 p.
Series
Electrochemical Society Proceedings, PV 95-10
Keyword [en]
Fullerenes, C60, C70, C61H2, high pressure, orientational structure, phase diagrams, thermal conductivity, bulk modulus, compressibility
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-26176ISBN: 1-56677-104-8 (print)OAI: oai:DiVA.org:umu-26176DiVA: diva2:240642
Note
Invited paper; editors Rodney S. Ruoff and Karl M. Kadish.Available from: 2009-09-29 Created: 2009-09-29 Last updated: 2010-01-29

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CiteExportLink to record
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