Characteristic Interaction of Na-H-C60 and C60 with Hydrogen and Rare Gases

Abstract

Rare gases such as He, Ne and Ar are trapped in the lattice of solid C₆₀ and (NaH)₄C₆₀ under conditions of ambient temperature and pressure. The mass analyzed thermal desorption reveals that rare gases are desorbed above 400K and their desorption amounts are in nonstoichiometric level. Ar2p and Ar3s X-ray photoelectron spectra show large chemical shifts. These results suggest that He, Ne and Ar have charge and are in valence state.