INTERCALATION OF ACCEPTORS IN C-60

Acceptor molecules have been reacted with C-60 to produce new intercal ant compounds. The reactants intercalated in this study are AsF5, InCl 3, and SbCl5. The reactions with AsF5 produced compounds containing As F6- that were characterized with X-ray diffraction, far infrared absor ption, and nuclear magnetic resonance. The room temperature resistivit y of the compounds was on the order of 10(3)-10(4) Ohm cm with an exci tation energy for conduction of 0.22 eV. The reactions with InCl3 prod uced compounds that were investigated with X-ray diffraction and far i nfrared absorption. They had room temperature resistivities of 10(2) O hm cm and excitation energies of 0.043 eV. Both the AsF5 and InCl3 rea cted compounds had semiconducting behaviors with a transition that was verified by differential thermal analysis. The SbCl5 compounds were c haracterized by far infrared absorption and showed a semiconducting be havior with an excitation energy of 0.65 eV.