Tungsten 3p X-ray absorption spectrum of WF6

The 3p (M3, M2) X-ray absorption spectrum of tungsten (2200–2600 eV) in gaseous WF6 has been obtained with synchrotron radiation using a total ion yield technique. Both the 3p3/2 and 3p1/2 spectra are dominated by the 3p→5d unresolved ligand-field split (t2g*+eg*) lines. The difference between the deconvoluted M3 and M2 doublet lines is related to multiplet effects due to the coupling between the 3p core and the 5d valence levels inducing differential intensity transfer between the t2g* and eg* components at the two edges.