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Quantitative insights into the adsorption structure of diindeno[1,2-a;1′,2′-c]fluorene-5,10,15-trione (truxenone) on a Cu(111) surface using X-ray standing waves
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Duncan, David A., Blowey, Philip J., Lee, Tien-Lin, Allegretti, Francesco, Nielsen, Christian B. and Rochford, Luke A. (2021) Quantitative insights into the adsorption structure of diindeno[1,2-a;1′,2′-c]fluorene-5,10,15-trione (truxenone) on a Cu(111) surface using X-ray standing waves. ACS Omega, 6 (50). pp. 34525-34531. doi:10.1021/acsomega.1c04799 ISSN 2470-1343.
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WRAP-quantitative-insights-adsorption-structure-diindeno[1,2-a;1′,2′-c]fluorene-5,10,15-trione(truxenone)-Cu(111)-surface-using-X-ray-standing-waves-2021.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1600Kb) | Preview |
Official URL: https://doi.org/10.1021/acsomega.1c04799
Abstract
The adsorption structure of truxenone on Cu(111) was determined quantitatively using normal-incidence X-ray standing waves. The truxenone molecule was found to chemisorb on the surface, with all adsorption heights of the dominant species on the surface less than ∼2.5 Å. The phenyl backbone of the molecule adsorbs mostly parallel to the underlying surface, with an adsorption height of 2.32 ± 0.08 Å. The C atoms bound to the carbonyl groups are located closer to the surface at 2.15 ± 0.10 Å, a similar adsorption height to that of the chemisorbed O species; however, these O species were found to adsorb at two different adsorption heights, 1.96 ± 0.08 and 2.15 ± 0.06 Å, at a ratio of 1:2, suggesting that on average, one O atom per adsorbed truxenone molecule interacts more strongly with the surface. The adsorption geometry determined herein is an important benchmark for future theoretical calculations concerning both the interaction with solid surfaces and the electronic properties of a molecule with electron-accepting properties for applications in organic electronic devices.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry Faculty of Science, Engineering and Medicine > Science > Physics |
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| SWORD Depositor: | Library Publications Router | |||||||||
| Library of Congress Subject Headings (LCSH): | Adsorption -- Research, Fluorene -- Absorption and adsorption , Copper -- Surfaces, Organic semiconductors | |||||||||
| Journal or Publication Title: | ACS Omega | |||||||||
| Publisher: | American Chemical Society | |||||||||
| ISSN: | 2470-1343 | |||||||||
| Official Date: | 21 December 2021 | |||||||||
| Dates: |
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| Volume: | 6 | |||||||||
| Number: | 50 | |||||||||
| Page Range: | pp. 34525-34531 | |||||||||
| DOI: | 10.1021/acsomega.1c04799 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Date of first compliant deposit: | 26 January 2022 | |||||||||
| Date of first compliant Open Access: | 26 January 2022 | |||||||||
| RIOXX Funder/Project Grant: |
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