Numéro
J. Phys. Colloques
Volume 47, Numéro C8, Décembre 1986
EXAFS and Near Edge Structure IV
Page(s) C8-569 - C8-573
DOI https://doi.org/10.1051/jphyscol:19868106
EXAFS and Near Edge Structure IV

J. Phys. Colloques 47 (1986) C8-569-C8-573

DOI: 10.1051/jphyscol:19868106

DOUBLE EXCITATION IN THE K - SHELL ABSORPTION SPECTRUM OF SULPHUR IN H2S AND D2S

J. HORMES1, U. KUETGENS1 et I. RUPPERT2

1  Physikalisches Institut der Universität Bonn, Nussallee 12, D-5300 Bonn 1, F.R.G.
2  Institut für anorganische Chemie der Universität Bonn, Gerhard-Domagk-Strasse 1, D-5300 Bonn 1, F.R.G.


Abstract
The X- ray absorption spectra of H2S and D2S were studied near the sulphur K - edge at high resolution using synchrotron radiation as a continuous background source. In addition to the well-known single electron excitation lines ws observe two new structures in the continuum. On the basis of single configuration Hartree - Fock calculations we assign these features to two-electron transitions leading to levels of the final state configurations 1s2s2p63s2p34s np,ns, 4p np and 3d np and to excited states of the ion 1s2s2p63s2p3 ns, np, nd εp.