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13C NMR on intercal...
13C NMR on intercalated 2D-polymerised C60 and modified peapods.
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- Wågberg, Thomas (författare)
- Umeå universitet,Institutionen för fysik
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Goze-Bac, Christophe (författare)
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- Röding, Robert (författare)
- Umeå universitet,Institutionen för fysik
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- Sundqvist, Bertil (författare)
- Umeå universitet,Institutionen för fysik
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- Johnels, Dan (författare)
- Umeå universitet,Kemiska institutionen
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Kataura, Hiromichi (författare)
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Bernier, Patric (författare)
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(creator_code:org_t)
- Melville, NY : American Institute of Physics (AIP), 2004
- 2004
- Engelska.
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Ingår i: Electronic Properties of Synthetic Nanostructures. - Melville, NY : American Institute of Physics (AIP). - 0735402043 ; , s. 238-41
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We present 13C NMR results on the intercalated 2D C60-polymers Li4-xNaxC60 (x=0-4 with half integer steps) showing that while Li4C60 forms a tetragonal polymer with double polymer bonds between the molecules, Na4C60 form a monoclinic polymer with single polymer bonds. The chemical shift is much larger for Li-rich samples than for Na-rich samples, indicating perhaps a different type of interaction with the C60 molecules. The crossover between the two structures appears to be at the composition Li2.5Na1.5C60 . We also show NMR data on SWNT filled with C60 molecules, so called peapods, showing that the NMR line of C60 can not be observed when the C60 is inside the tubes. Weinterpret this as resulting from a very long relaxation time, indicating that the dynamics of the C60 molecule is hindered by the nanotube walls.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Fullerenes
- NMR
- C60
- fullerides
- Li4C60
- Na4C60
- single wall carbon nanotubes
- peapods
- filled nanotubes
- C60@SWNT
- fullerene polymers
- two-dimensional structure
- Condensed matter physics
- Kondenserade materiens fysik
- fysik
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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