Ogata, Hironori (Hosei, Japan): Molecular dynamics and electronic states of fullerene encapsulated SWNTs studied by solid state NMR
C60 distance 0.85 nm. C60 fcc 1 nm, oligomer 0.92 nm (measured by e- diffraction).
13C NMR at low temp. No evidence of sp3 C in C60@SWNT and in C70@SWNT.
230K orientational disorder only, because rotation is hindered by interaction.
Low temp: orientational order.
fcc-C60: 12 nearest neighbors, peapod: only 2!