Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.340, 667-670, 2000
Hydrogen intercalation in potassium-C-60
Solid state H-1 NMR of (KH)(3)C-60 was measured in the temperature range between -80 and 60 degrees C. A doublet spectrum composed of main peak at -7.0 ppm and shoulder peak at similar to 0 ppm was observed at room temperature. The negative chemical shift of the main peak indicates that hydrogen in (KH)(3)C-60 exists as a hydride-like ion. The 60 degrees C spectrum became singlet at -5.8 ppm due to motional narrowing.