Structural aspects of two-dimensional polymers: Li4C60, Na4C60 and tetragonal C60. Raman spectroscopy and X-ray diffraction.
2004 (English)In: Journal of Physics and Chemistry of Solids vol. 65, issue no. 2-3: Proceedings of the 12th International Symposium on Intercalation Compounds, ISIC-12, Poznan, Poland 2003, Amsterdam: Elsevier B.V. , 2004, 317-320 p.Conference paper (Refereed)
We present an analysis of three different two-dimensional polymers, tetragonal C60, Li4C60, and Na4C60. Based on X-ray diffraction and Raman spectroscopy, we conclude that Li4C60 forms a tetragonal structure with intermolecular bonds formed by 2 plus 2 cycloaddition, in the same way as for tetragonal C60. Na4C60, on the other hand, forms a monoclinic structure with single C–C bonds between the molecules. Our Raman spectroscopy results can be interpreted in two ways: either the charge transfer to the C60 molecules is the same in both doped compounds with four electrons/molecule or the electron charge transfer is smaller from the Li ions than from the Na ions.
Place, publisher, year, edition, pages
Amsterdam: Elsevier B.V. , 2004. 317-320 p.
, Journal of Physics and Chemistry of Solids, ISSN 0022-3697 ; 65
Fullerenes, C60, fullerides, polymeric fullerene, tetragonal, Li4C60, Na4C60, lattice structure, X-ray diffraction, Raman spectroscopy
Condensed Matter Physics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-11997DOI: 10.1016/j.jpcs.2003.08.024OAI: oai:DiVA.org:umu-11997DiVA: diva2:151668
Editors: Daniel Guérard and Francois Béguin2007-03-182007-03-182009-03-06Bibliographically approved