X-ray absorption fine structure study of manganese compounds

This work is aimed at the comparative analysis (both theoretical and experimental) of the Mn K-edge X-ray absorption fine structure in selected manganese compounds, i.e. MnS, MnPO4·H2O and MnO2 measured in transmission mode by using synchrotron radiation in HASYLAB. The results were analysed by performing the fine structure calculation with feff8 programme. The calculations gave results which conform to the experimental data. We observed an evolution of the pre-edge features and a shift of the main absorption edge toward higher energy with the Mn oxidisation degree.