TUNGSTEN 3P X-RAY-ABSORPTION SPECTRUM OF WF6

The 3p (M-3,M-2) X-ray absorption spectrum of tungsten (2200-2600 eV) in gaseous WF6 has been obtained with synchrotron radiation using a to tal ion yield technique. Both the 3p(3/2) and 3p(1/2) spectra are domi nated by the 3p --> 5d unresolved ligand-field split (t(2g) + e(g)*) lines. The difference between the deconvoluted M-3 and M-2 doublet lin es is related to multiplet effects due to the coupling between the 3p core and the 5d valence levels inducing differential intensity transfe r between the t(g) and e(g)* components at the two edges. (C) 1998 El sevier Science B.V.