Adsorption of ethene, propene and 3,3,3-trifluoropropene on oxygen modified Mo(100) surfaces studied by UPS

J. L. Grant*, T. B. Fryberger, P. C. Stair

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Adsorption of ethene, propene and 3,3,3-trifluoropropene on Mo(100) surfaces modified by 0.9-1.1 ML of oxygen was studied by UPS. Ethene and propene molecularly adsorb to oxygen modified Mo(100). The binding energy shift in the π-orbital of both molecules is consistent with bonding by π-electron donation to surface Lewis acid sites. Molecular adsorption of CF3CHCH2 produces a π-orbital shift to lower binding energy. This observation along with the calculated electronic structure of CF3CHCH2 is interpreted as evidence for a surface chemical bond dominated by backdonation of electrons from the surface to unoccupied π*-orbitals on the adsorbate.

Original languageEnglish (US)
Pages (from-to)127-134
Number of pages8
JournalSurface Science
Volume239
Issue number1-2
DOIs
StatePublished - Dec 1 1990

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Adsorption of ethene, propene and 3,3,3-trifluoropropene on oxygen modified Mo(100) surfaces studied by UPS'. Together they form a unique fingerprint.

Cite this