K-BETA X-RAY-EMISSION SPECTRA AND CHEMICAL ENVIRONMENTS OF PHOSPHORUSAND SULFUR IN VARIOUS COMPOUNDS

The P K beta emission and S K beta emission spectra in fluorescence fr om many selected compounds, P4O10, KPF6, M(4)P(2)O(7), M(2)SO(3), M(2) SO(4), MHSO(4) (M = Na and K), P4Sn (n = 3, 5, 7 and 10), Na2S2On (n = 3-7) and K2S2On (n = 3, 5, 7 and 8), are measured with a high-resolut ion two-crystal vacuum spectrometer equipped with Ge(111)crystals. The measured K beta emission spectra are discussed in relation to the fun damental structures of the compounds and interpreted in terms of avail able molecular-orbital calculations of the PF6- ion and sulfur oxo ani ons. It is shown that the emission spectra are strongly influenced by chemical environments around phosphorus and sulfur atoms in the compou nds, but little affected by the metal ions Na+ and K+.