URANYL-SULFATE GRAPHITE-INTERCALATION COMPOUNDS .2. STRUCTURAL AND SPECTROSCOPIC STUDIES

Structural and spectroscopic studies of a new graphite uranyl sulfate phase are performed. By using X-ray diffraction, an electron distribut ion pattern along the graphite c-axis for stages 1-4 is calculated, ba sed on [001] analysis; [hk0] and [hkl] reflection analysis allows the determination of the parameters of the planar primitive cell and demon strates the existence of a three-dimensional order. The Raman and infr a-red spectra of graphite uranyl-sulfate compounds are in agreement wi th those observed previously with other acceptor compounds. Infra-red spectra give complementary insight into the dynamics of the graphitic layers related to Raman spectra: the structural implications fixed by compatibility of those spectra are discussed. Finally, the intercalate d species between the graphite layers are identified by Raman spectros copy.