19F NMR and EPR study of fluorinated buckminsterfullerene C60F58

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6 Scopus citations

Abstract

Solid state 19F NMR in the temperature range from 96 to 366 K and room temperature EPR studies of fluorinated buckminsterfullerene C60F58 have been carried out. The temperature dependence of the line width and the spin-lattice relaxation time show hindered molecular motion with the activation energy of ΔEa = 1.9 kcal/mol. Neither phase transition nor random rotation of C60F58 have been obtained. The spin-lattice relaxation rate is strongly affected by the presence of paramagnetic centers, namely, dangling C-C bonds yielding localized unpaired electrons. Such broken bonds are caused by C-C bond rupture in a cage-opened structure of hyperfluorinated species.

Original languageEnglish
Pages (from-to)483-489
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number3
DOIs
StatePublished - 1 Mar 2002

Keywords

  • A. Fullerenes
  • D. Electron paramagnetic resonance (EPR)
  • D. Nuclear magnetic resonance (NMR)

ASJC Scopus subject areas

  • General Chemistry
  • General Materials Science
  • Condensed Matter Physics

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