Abstract
The intercalation reaction of chalcogen hexafluorides, EF 6 (E=S, Se, Te), with graphite was investigated. It occured only under a fluorine atmosphere and first stage intercalation compounds were obtained with TeF 6 or SeF 6, as well as a partial graphite fluorination. SF 6 did not intercalate but catalyzed the complete fluorination of graphite. All compounds were characterized by X-ray diffraction, thermogravimetric analysis, infrared and 19 F NMR spectroscopies. Entities, such as TeF 6 and SeF 6 were identified. Others, such as EF 7 −, EF 8 2−, …, and possible SeF n polymeric forms could exist. In all cases, the presence of fluorinated graphite was found.
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