Molecular Fluoro Palladium Complexes

X-ray photoelectron spectra of several Palladium fluorine compounds have been investigated. In all these phases Palladium atoms have a more or less distorted octahedral coordination. Satellite Structures generally occur in Pd 3d3/2 and Pd 3d5/2 levels and broad F 1s peaks are observed. Shifts in binding energies can be correlated with Palladium oxidation State and covalency. XPS results clearly confirm the unusual +III oxidation State of Palladium in NaPdF4, Na3PdF6, K3PdF6, and K2NaPdF6.

X‐Ray Photoelectron Spectroscopy of Palladium Fluorides

The trans influence of F, Cl, Br and I ligands in a series of square-planar Pd(II) complexes. Relative affinities of halide anions for the metal centre in trans-[(Ph3P)2Pd(Ph)X] ☆

Rutile-structured SnO2, PbO2, and RuO2 have long been known to transform to cubic high-pressure phases, for which a fluorite structure has been assumed. Rietveld refinement results from x-ray diffraction studies indicated that these phases have a modified fluorite structure (space group Pa). Thus, for metal dioxides, all known cubic, postrutile phases have the Pa structure, thereby providing experimental examples of the high-pressure structure predicted from theoretical calculations for stishovite (rutile-structured silica). High-pressure transitions in stishovite may have profound implications for the geochemistry of the core-mantle boundary.

https://science.sciencemag.org/content/sci/271/5249/629.full.pdf

H. Touhara

Papers

On a new structural type of fluorine compounds : Crystal and magnetic structures of a high pressure form of PdF2