Abstract
The chemisorption of trans-2-butene on Pd(110) has been investigated by scanning tunneling microscopy (STM) and near-edge X-ray absorption fine structure (NEXAFS) study. Atomically resolved STM images show that the trans-2-butene appears as a dumbbell-shaped protrusion and the C=C bond is at the on-top site of the substrate atom. With increasing the coverage of trans-2-butene, a short-range (3 × 1)-1D ordered structure is formed at 0.1 ML and a c(4 × 2) structure is dominantly formed at saturation coverage. NEXAFS experiments revealed the adsorption structure of trans-2-butene on Pd(110), where the direction in which the two methyl groups are connected is parallel to [001] at low coverage and the C=C double bond is parallel to [11̄0] in high coverage regions.
| Original language | English |
|---|---|
| Pages (from-to) | 4911-4915 |
| Number of pages | 5 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 41 |
| Issue number | 7 B |
| DOIs | |
| Publication status | Published - 2002 Jul |
| Externally published | Yes |
Keywords
- Adsorption geometry
- Near-edge X-ray absorption fine structure (NEXAFS)
- Pd(110)
- Scanning tunneling microscopy (STM)
- Trans-2-butene
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)