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Fixed-frequency and threshold molecular photoelectron spectra of S 1s, Si 1s and Cl 1s core levels
Authors:A. W. Potts   H. F. Fhadil   J. M. Benson  I. H. Hillier
Affiliation:

a Department of Physics, King's College, Strand, London WC2R 2LS, UK

b Department of Chemistry, University of Manchester, Manchester M13 9PL, UK

Abstract:Fixed-frequency and threshold photoelectron spectra have been recorded for ionization from the S ls shells in SF6, CS2 and COS, the Si 1s shells in SiH4 and SiCl4 and the Cl 1s shell in SiCl4 using synchrotron radiation. Fixed-frequency spectra generally showed a single strong ionization feature with associated weak satellite structure due to excited ionized states. Threshold spectra closely resembled X-ray absorption spectra but with an additional feature due to direct ionization. In cases where resonant process enhanced the NEXAFS spectrum direct ionization was not observed.
Keywords:
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