Mass Selected ZEKE-Spectra of FeC2-Anions: A Spectroscopic Access to Intermediates in Catalytic Reactions of Hydrocarbons on Metal Surfaces

نویسندگان

  • G. Drechsler
  • C. Bäßmann
  • U. Boesl
  • E. W. Schlag
چکیده

Zero-kinetic-energy (ZEKE) photoelectron spectra of metalcarbide anions are presented, allowing a high resolu­ tion spectroscopic access to intermediates in catalytic reac­ tions of hydrocarbons on metal surfaces. As a first compound, FeC2 (an intermediate of the iron/acetylene system) has been chosen. Important for successful ZEKE spectroscopy was a special anion source and the selection by time-of-flight mass spectrometry. In addition, conventional laser induced photo­ detachment photoelectron spectroscopy in combination with our anion source and mass analyzer delivered valuable new information.

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تاریخ انتشار 2013