EXAFS Spectroscopy of Some Iron(III) Compounds by Use of Dispersive-type In-laboratory X-Ray Spectrometer

Abstract

Abstract A dispersive-type in-laboratory EXAFS spectrometer was constructed by combining a transmission-type dispersing crystal and a position-sensitive proportional counter. FeK absorption spectra were measured by use of this apparatus on FeCl3·6H2O, Fe(ClO4)3·6H2O and anhydrous FeCl3. Discussion is given on the results obtained from the analyses of observed EXAFS data concerning the structure around Fe ions in these compounds. AsI3-like structure is proposed for anhydrous FeCl3.