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On-surface synthesis of doubly-linked one-dimensional pentacene ladder polymers
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SYSNO ASEP 0539764 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title On-surface synthesis of doubly-linked one-dimensional pentacene ladder polymers Author(s) Biswas, K. (ES)
Urgel, J. I. (ES)
Sánchez-Grande, A. (ES)
Edalatmanesh, Shayan (FZU-D) ORCID
Santos, J. (ES)
Cirera, B. (ES)
Mutombo, Pingo (FZU-D) RID, ORCID
Lauwaet, K. (ES)
Miranda, R. (ES)
Jelínek, Pavel (FZU-D) RID, ORCID
Martín, N. (ES)
Ecija, D. (ES)Number of authors 12 Source Title Chemical Communications. - : Royal Society of Chemistry - ISSN 1359-7345
Roč. 56, č. 97 (2020), s. 15309-15312Number of pages 4 s. Language eng - English Country GB - United Kingdom Keywords nc-AFM ; on surface chemistry ; polymers Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000599004200006 EID SCOPUS 85097863067 DOI 10.1039/d0cc06865a Annotation On-surface synthesis has recently become an essential approach toward the formation of carbon-based nanostructures. Special emphasis is set on the synthesis of π-conjugated polymers taking into consideration their relevance and potential in organic electronics, optoelectronics and spintronics. Here, we report the on-surface synthesis of conjugated ladder polymers consisting of pentacene units doubly-linked via ethynylene-like bonds on the Au(111) surface under ultra-high vacuum conditions. To this aim, we have sublimed pentacene-like precursors equipped with four :CBr2 functional groups to steer the desired reaction upon annealing on the surface. The atomically precise structure of the obtained polymers has been unambiguously characterized via low-temperature scanning tunneling microscopy and non-contact atomic force microscopy. In addition, scanning tunneling spectroscopy complemented with density-functional theory calculations reveal the narrow bandgap of the polymer.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address https://doi.org/10.1039/d0cc06865a
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