ISOMER SPECIFIC INTERCALATION CHEMISTRY - POTASSIUM INSERTION INTO THE D-2 AND D-2D ISOMERS OF C-84

Reaction of solids of pure D-2d and D-2 C-84, as well as mixtures of t hese isomers, with an excess of potassium produces the cubic phases K8 +xC84, With multiple occupancy of the octahedral site by potassium. An alysis of X-ray powder diffraction data reveals that the anions adopt well-defined orientations in the solid, driven by the anion-cation con tacts. Electron paramagnetic resonance measurements on the solid fulle rides indicate that the electronic properties depend on the particular isomer of C-84 used as host.