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On-surface synthesis of non-benzenoid conjugated polymers by selective atomic rearrangement of ethynylarenes
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SYSNO ASEP 0570913 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title On-surface synthesis of non-benzenoid conjugated polymers by selective atomic rearrangement of ethynylarenes Author(s) Jimenez-Martin, Alejandro (FZU-D) ORCID
Villalobos, F. (ES)
Mallada Faes, Benjamin Jose (FZU-D) ORCID, RID
Edalatmanesh, Shayan (FZU-D) ORCID
Matěj, Adam (FZU-D) ORCID
Cuerva, J.M. (ES)
Jelínek, Pavel (FZU-D) RID, ORCID
Campaña, A.G. (ES)
De La Torre Cerdeño, Bruno (FZU-D) ORCIDNumber of authors 9 Source Title Chemical Science . - : Royal Society of Chemistry - ISSN 2041-6520
Roč. 14, č. 6 (2023), s. 1403-1412Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords on-surface synthesis ; DFT ; SPM Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GX20-13692X GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000907621600001 EID SCOPUS 85146158671 DOI 10.1039/d2sc04722e Annotation Here, we report a new on-surface synthetic strategy to precisely introduce five-membered units into conjugated polymers from specifically designed precursor molecules that give rise to low-bandgap fulvalene-bridged bisanthene polymers. The selective formation of non-benzenoid units is finely controlled by the annealing parameters, which govern the initiation of atomic rearrangements that efficiently transform previously formed diethynyl bridges into fulvalene moieties. The atomically precise structures and electronic properties have been unmistakably characterized by STM, nc-AFM, and STS and the results are supported by DFT theoretical calculations. Interestingly, the fulvalene-bridged bisanthene polymers exhibit experimental narrow frontier electronic gaps of 1.2 eV on Au(111) with fully conjugated units. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://hdl.handle.net/11104/0342242
Number of the records: 1