Orientation and stability of a bi-functional aromatic organic molecular adsorbate on silicon
| Autor: | Kane M. O'Donnell, Lars Thomsen, Asif Suleman, Steven R. Schofield, Oliver Warschkow, Gareth Moore, Manuel Siegl, Holly Hedgeland |
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| Rok vydání: | 2016 |
| Předmět: |
Photoemission spectroscopy
Chemistry Analytical chemistry General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences XANES 0104 chemical sciences law.invention Benzonitrile chemistry.chemical_compound Adsorption law Chemical physics Density functional theory Physical and Theoretical Chemistry Absorption (chemistry) Scanning tunneling microscope 0210 nano-technology Spectroscopy |
| Zdroj: | Physical chemistry chemical physics : PCCP. 18(39) |
| ISSN: | 1463-9084 |
| Popis: | In this work we combine scanning tunneling microscopy, near-edge X-ray absorption fine structure spectroscopy, X-ray photoemission spectroscopy and density functional theory to resolve a long-standing confusion regarding the adsorption behaviour of benzonitrile on Si(001) at room temperature. We find that a trough-bridging structure is sufficient to explain adsorption at low coverages. At higher coverages when steric hindrance prevents the phenyl ring lying flat on the surface, the 2+2 cycloaddition structure dominates. |
| Databáze: | OpenAIRE |
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