X-ray absorption and X-ray scattering - two complementary techniques to determine the coordination of solution species

The intention of the presentation is to compare the experimental observations with X-ray absorption and X-ray scattering to determine the coordination of solution species. EXAFS is an element selective technique and allows to identify the direct coordinated ligands. Distances above 4 Ae are often difficult to detect, even if it concerns heavy atoms. X-ray scattering detects all scattering pairs in a solution. The difference technique allows to select specific ions and makes X-ray scattering is especially sensitive to heavy scatterers in distances above 4 Ae.