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Title: | Catalytic reactions of acetyl compounds on Ni(111) | Authors: | YEO BOON SIANG, JASON | Keywords: | Surface Chemistry, Ultrahigh Vacuum, Nickel, Reflection Absorption Infrared Spectroscopy, Carbonyl Compounds, Coadsorption. | Issue Date: | 18-Sep-2004 | Citation: | YEO BOON SIANG, JASON (2004-09-18). Catalytic reactions of acetyl compounds on Ni(111). ScholarBank@NUS Repository. | Abstract: | The surface chemistry of acetyl bromide, acetyl chloride, acetyl chloride-d3, acetyl-13C1-chloride, acetic anhydride and acetyl cyanide have been investigated on clean and coadsorbate-modified Ni(111) using reflection absorption infrared spectroscopy. On O-precovered Ni(111), all the molecules have been found to undergo nucleophilic substitution reaction with the O adatoms to give acetate. On clean Ni(111), acetyl chloride reacts to give acetic anhydride. Acetyl cyanide adsorbs on the clean surface via either di-sigma bonding of the carbonyl group or dative bonding through the carbonyl O lone pair electrons. Acetyl species have been synthesized from the dissociation of acetyl halides and acetic anhydride on CO-precovered Ni(111). | URI: | http://scholarbank.nus.edu.sg/handle/10635/27650 |
Appears in Collections: | Master's Theses (Open) |
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