Pressure polymerized C60: Raman and NMR studies
1996 (English)In: Fullerenes and Fullerene Nanostructures: Proceedings of the International Winterschool on Electronic Properties of Novel Materials, Kirchberg, Tyrol, Austria 1996, Singapore: World Scientific , 1996, 344-348 p.Conference paper (Refereed)
The properties of bulk C60 have been studied after treatment at 1.1 GPa and 550-585 K. The treated material is insoluble in both toluene and 1,2-dichlorobenzene. Raman spectroscopy on modified aterial shows a large number of new lines, and the Raman pentagon pinch mode (Ag2) shifts from 1469 to 1458 /cm 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. The results verify previous suggested polymeric structures where the fullerene cages are connected by four-membered rings.
Place, publisher, year, edition, pages
Singapore: World Scientific , 1996. 344-348 p.
Fullerenes, C60, high pressure synthesis, polymerization, structure, Raman spectroscopy, solubility, intermolecular bonds, magic angle spinning, nuclear magnetic resonance, MAS NMR
Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-25890ISBN: 981-02-2853-8OAI: oai:DiVA.org:umu-25890DiVA: diva2:234680
Kirchberg, Tyrol, Austria 1996
Editors:Hans Kuzmany, Jörg Fink, Michael Mehring and Siegmar Roth2009-09-102009-09-102013-06-14Bibliographically approved