Polymerization of C60 under hydrostatic and non-hydrostatic conditions
1997 (English)In: Fullerenes: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials, vol. 5: Proceedings of the 192nd Meeting of the Electrochemical Society, Paris 1997; Symposium Fullerenes: Chemistry, Physics, and New Directions, Pennington, NJ: The Electrochemical Society , 1997, 439-449 p.Conference paper (Refereed)
We have submitted both powder and single crystal C60 to pressures in the range 1 - 2 GPa at temperatures between 300 and 900 K in order to study pressure polymerization. Reaction conditions varied, from non-hydrostatic conditions with powder samples in steel capsules treated in solid pressure media, to hydrostatic experiments using silicone oils, N2 or He gas. The reacted samples were characterized by Raman spectroscopy and x-ray diffraction. Depending on experimental conditions, their structures varied from orthorhombic (single crystals) to more or less disordered face centered cubic lattices, and the observed Raman spectra could usually be correlated with the observed structures. The results are used to refine and update the pressure-temperature phase diagram of C60.
Place, publisher, year, edition, pages
Pennington, NJ: The Electrochemical Society , 1997. 439-449 p.
, Electrochemical Society Proceedings, 97-42
Fullerenes, C60, high pressure, polymerization, hydrostatic pressure, Raman spectroscopy, phase diagram, X-ray diffraction
Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-25839ISBN: 1-56677-192-7OAI: oai:DiVA.org:umu-25839DiVA: diva2:234206