INTERNAL-FRICTION OF AMINE-INTERCALATED TAS2

Internal friction measurements on TaS2 and a representative number of its amine intercalates are reported. The intercalants are observed to magnify the features seen in the internal friction curve of pure TaS2 and to introduce new features such as abrupt decreases in internal fri ction (IF) attributed to the melting of certain intercalants and a lar ge low-temperature IF peak attributed to thermally activated proton ex change among intercalant molecules. The intercalant configurations, ho st-layer separations, and the number of amine groups per intercalant m olecule, are used to explain the differences seen in the internal fric tion spectra of the intercalated samples. (C) 1998 Chapman & Hall.