Adsorption and Electronic Structure of Single C60F18Molecule on Si(111)-7×7 Surface
| Autor: | Y. Kawazoe, Yasunori Fujikawa, A. I. Oreshkin, J. T. Sadowski, R. Z. Bakhtizin, Vijay Kumar, Toshio Sakurai, Palanichamy Murugan |
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| Rok vydání: | 2010 |
| Předmět: |
Chemistry
Organic Chemistry Binding energy Electronic structure Polarization (waves) Molecular physics Atomic and Molecular Physics and Optics law.invention Electric dipole moment Adsorption Ab initio quantum chemistry methods law Molecule General Materials Science Physics::Chemical Physics Physical and Theoretical Chemistry Scanning tunneling microscope |
| Zdroj: | Fullerenes, Nanotubes and Carbon Nanostructures. 18:369-375 |
| ISSN: | 1536-4046 1536-383X |
| DOI: | 10.1080/1536383x.2010.487409 |
| Popis: | Scanning tunneling microscopy has been used to spatially image individual fluorofullerene C60F18 molecules on Si(111)-7×7 surface. The images have been interpreted with the help of ab initio calculations. C60F18 molecules interact with the surface with F atoms pointing down, whereas a large electric dipole moment of the molecule induces strong polarization on the surface but the charge transfer is small. It has been shown that during the time of image collection, some of the F atoms migrate from fluorofullerene molecule due to F binding energy on a Si surface being nearly twice the mean value on the C60 molecule. |
| Databáze: | OpenAIRE |
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