The possibility of occurring n(2) --> n(3) stage-to-stage transitions in th
e C6F6, CCl4, and GeCl4 fluorinated graphite intercalation compounds (FGICs
) was studied. Stage III FGICs were proved to be individual compounds by X-
ray powder diffraction, IR spectroscopy, F-19 NMR spectroscopy, and element
al analyses.