Mishra, Shantanu; Xu, Kun; Eimre, Kristjan; Komber, Hartmut; Ma, Ji; Pignedoli, Carlo A.; Fasel, Roman; Feng, Xinliang; Ruffieux, Pascal (2021). Synthesis and characterization of [7]triangulene. Nanoscale, 13(3), pp. 1624-1628. Royal Society of Chemistry 10.1039/D0NR08181G
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21_Mishra_Nanoscale_Synthesis_and_Caracterization_of_7_triangulene.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (1MB) |
Triangulene and its π-extended homologues constitute non-Kekulé polyradical frameworks with high-spin ground states, and are anticipated to be key components of organic spintronic devices. We report a combined in-solution and on-surface synthesis of the hitherto largest triangulene homologue, [7]triangulene (C78H24), consisting of twenty-eight benzenoid rings fused in a triangular fashion. We employ low-temperature scanning tunneling microscopy to confirm the chemical structure of individual molecules adsorbed on a Cu(111) surface. While neutral [7]triangulene in the gas phase is predicted to have an open-shell septet ground state; our scanning tunneling spectroscopy measurements, in combination with density functional theory calculations, reveal chemisorption of [7]triangulene on Cu(111) together with considerable charge transfer, resulting in a closed-shell state. Furthermore, substantial hybridization between the molecular orbitals of [7]triangulene is observed.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Fasel, Roman |
Subjects: |
500 Science > 530 Physics 500 Science > 540 Chemistry |
ISSN: |
2040-3364 |
Publisher: |
Royal Society of Chemistry |
Language: |
English |
Submitter: |
Roman Fasel |
Date Deposited: |
15 Feb 2022 10:42 |
Last Modified: |
05 Dec 2022 16:05 |
Publisher DOI: |
10.1039/D0NR08181G |
PubMed ID: |
33443270 |
BORIS DOI: |
10.48350/164866 |
URI: |
https://boris.unibe.ch/id/eprint/164866 |
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