Fragmentation of CO and Transition Metal Carbonyls Following Soft X-Ray Excitation

  • W. Eberhardt
  • C. T. Chen
  • W. K. Ford
  • E. W. Plummer
  • H. R. Moser
Part of the Springer Series in Surface Sciences book series (SSSUR, volume 4)


Dissociation or fragmentation of isolated gas phase molecules with soft x-rays or electrons is in general a rather efficient process, much in contrast to the very low ion desorption yields from surfaces. We have studied the various reaction channels leading to the production of fragment ions of CO and the changes in the fragment distribution upon chemical bonding. In this respect transition metal carbonyls offer a unique possibility to study the effects of bonding of CO to a metal approaching the situation of CO chemisorbed on a metal surface in a quasi—continuous way. The vapor pressure of these compounds is large enough that carbonyls with up to 4 metal atoms can be studied in our spectrometer in absorption, photoemission, and fragment ion spectroscopy.


Decay Channel Auger Spectrum Ionization Threshold Core Hole Auger Decay 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • W. Eberhardt
    • 1
  • C. T. Chen
    • 2
  • W. K. Ford
    • 2
  • E. W. Plummer
    • 2
  • H. R. Moser
    • 3
  1. 1.Exxon Research and Engineering CompanyClinton Township, AnnandaleUSA
  2. 2.Physics DepartmentUniversity of PennsylvaniaPhiladelphiaUSA
  3. 3.Brookhaven National LaboratoriesNSLSUptonUSA

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