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NMR and Raman characterization of pressure polymerized C-60
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
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1996 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 258, no 5-6, 540-546 p.Article in journal (Refereed) Published
Abstract [en]

Bulk C60 has been treated at 1.1 GPa and 550–585 K, producing a dense insoluble material which on heating to above 600 K reverts to normal C60. Raman and IR studies on modified material show a large number of new lines, and the Raman pentagon pinch mode shifts from 1469 to 1458 cm−1 as on photopolymerization. MAS NMR shows one broadened line at the original C60 shift 144 ppm and a small peak at about 77 ppm due to the bridging carbons. None of the new resonances observed for C60 polymerized by other methods were observed. The results verify previously suggested polymeric structures where the fullerence cages are connected by four-membered rings.

Place, publisher, year, edition, pages
1996. Vol. 258, no 5-6, 540-546 p.
Keyword [en]
Fullerenes, C60, polymer, high pressure polymerization, NMR, MAS, Raman spectroscopy, structure, intermolecular bonds, IR spectroscopy
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-25965DOI: 10.1016/0009-2614(96)00743-9OAI: oai:DiVA.org:umu-25965DiVA: diva2:235435
Available from: 2009-09-16 Created: 2009-09-16 Last updated: 2017-12-13Bibliographically approved

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Persson, Per-AxelEdlund, UlfJohnels, DanSundqvist, Bertil
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