Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images
We investigate the combined effects of Jahn-Teller (JT) coupling and interactions with a surface substrate on fullerene anions C$_{60}^{2-}$ to C$_{60}^{4-}$. JT coupling alone causes the C$_{60}$ ions to instantaneously distort from the icosahedral symmetry of the neutral molecule to a lower symmet...
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| Format: | Article |
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Elsevier
2015
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| Online Access: | https://eprints.nottingham.ac.uk/29313/ |
| _version_ | 1848793758955470848 |
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| author | Dunn, Janette L. Alqannas, Haifa S. Lakin, Andrew J. |
| author_facet | Dunn, Janette L. Alqannas, Haifa S. Lakin, Andrew J. |
| author_sort | Dunn, Janette L. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We investigate the combined effects of Jahn-Teller (JT) coupling and interactions with a surface substrate on fullerene anions C$_{60}^{2-}$ to C$_{60}^{4-}$. JT coupling alone causes the C$_{60}$ ions to instantaneously distort from the icosahedral symmetry of the neutral molecule to a lower symmetry, with the molecule moving dynamically between a set of equivalent distortions. When adsorbed on a surface, the number of equivalent minimum-energy distortions is reduced. The implications of this on observed scanning tunneling microscopy (STM) images will be discussed, and comparisons made with existing experimental data. We show that a consistent interpretation of the images from all of the charge states of C$_{60}$ can only be obtained using a JT model in which the symmetry is further reduced by surface interactions. The comparison with experimental data also allows us to determine relationships between the quadratic Jahn-Teller coupling and surface interaction parameters. |
| first_indexed | 2025-11-14T19:05:24Z |
| format | Article |
| id | nottingham-29313 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:05:24Z |
| publishDate | 2015 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-293132020-05-04T17:07:57Z https://eprints.nottingham.ac.uk/29313/ Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images Dunn, Janette L. Alqannas, Haifa S. Lakin, Andrew J. We investigate the combined effects of Jahn-Teller (JT) coupling and interactions with a surface substrate on fullerene anions C$_{60}^{2-}$ to C$_{60}^{4-}$. JT coupling alone causes the C$_{60}$ ions to instantaneously distort from the icosahedral symmetry of the neutral molecule to a lower symmetry, with the molecule moving dynamically between a set of equivalent distortions. When adsorbed on a surface, the number of equivalent minimum-energy distortions is reduced. The implications of this on observed scanning tunneling microscopy (STM) images will be discussed, and comparisons made with existing experimental data. We show that a consistent interpretation of the images from all of the charge states of C$_{60}$ can only be obtained using a JT model in which the symmetry is further reduced by surface interactions. The comparison with experimental data also allows us to determine relationships between the quadratic Jahn-Teller coupling and surface interaction parameters. Elsevier 2015-05-27 Article PeerReviewed Dunn, Janette L., Alqannas, Haifa S. and Lakin, Andrew J. (2015) Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images. Chemical Physics . ISSN 0301-0104 (In Press) Jahn-Teller Fullerene Fulleride STM http://www.sciencedirect.com/science/article/pii/S0301010415001408 doi:10.1016/j.chemphys.2015.05.016 doi:10.1016/j.chemphys.2015.05.016 |
| spellingShingle | Jahn-Teller Fullerene Fulleride STM Dunn, Janette L. Alqannas, Haifa S. Lakin, Andrew J. Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| title | Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| title_full | Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| title_fullStr | Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| title_full_unstemmed | Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| title_short | Jahn-Teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| title_sort | jahn-teller effects and surface interactions in multiply-charged fullerene anions and the effect on scanning tunneling microscopy images |
| topic | Jahn-Teller Fullerene Fulleride STM |
| url | https://eprints.nottingham.ac.uk/29313/ https://eprints.nottingham.ac.uk/29313/ https://eprints.nottingham.ac.uk/29313/ |