Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.244, 245-250, 1994
XAs and XRD Studies on Graphite-Intercalation Compounds of H2Ptcl6
Graphite intercalation compounds (GICs) of H2PtCl6 were studied using X-ray diffraction and X-ray absorption (XAS) methods. Particularly, the results will be interpreted in correlation to charge transfer. For the orthogonal in-plane lattice following parameters ace found : a = 2024 pm, b = 1353 pm, and gamma = 90 degrees. The analysis of the EXAFS at the Pt L(III) edge yields a slightly decreased Pt-Cl bond length and additionally coordinated Cl atoms in comparison to the pure compound. This is in agreement with results evaluated from the Cl K edge. A small energy shift of 0.25 eV of the Pt L(III) edge to higher energies excludes a charge transfer to Pt in the intercalate.