Long-range ordered acetate structure on Cu(110)

✍ Scribed by P. Baumann; H.P. Bonzel; G. Pirug; J. Werner

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 568 KB
• Volume: 260
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(96)00801-9

✦ Synopsis

A chemisorbed layer prepared by exposing a clean Cu(110) surface to acetic acid, CHBCOOH, at room temperature was / studied by LEED and X-ray photoelectron diffraction (XPD). LEED shows a well ordered pattern with an oblique / 41 1 4) / unit cell. The equivalent oxygen coverage is 0.75 corresponding to three acetate species per unit cell. Polar angle O Is and C 1 s intensity disti'ibutions measured in four different azimuths for this layer show a large number of peaks which can be correlated with an ordered array of acetate species of two different configurations. A structure model for the acetate layer is proposed on the basis of LEED and XPD data. Single scattering model calculations carried out for this model show good agreement with experiment.