Bonding, structure, and magnetism of physisorbed and chemisorbed O2 on Pt(111)

  • W. Wurth
  • , J. Stöhr
  • , P. Feulner
  • , X. Pan
  • , K. R. Bauchspiess
  • , Y. Baba
  • , E. Hudel
  • , G. Rocker
  • , D. Menzel

Research output: Contribution to journalArticlepeer-review

235 Scopus citations

Abstract

Near-edge x-ray-absorption fine-structure spectroscopy studies are used to determine changes in the electronic, geometric, and magnetic structure of two sequential molecular precursors of O2 on Pt(111). Both molecules lie down on the surface. Physisorbed O2 is found to be van der Waals bonded, structurally unperturbed and paramagnetic, while chemisorbed O2 is e bonded, stretched by 0.16, and exhibits a reduced or vanishing paramagnetic exchange splitting.

Original languageEnglish
Pages (from-to)2426-2429
Number of pages4
JournalPhysical Review Letters
Volume65
Issue number19
DOIs
StatePublished - 1990

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