In memory of François Diederich. / Nanographenes (NGs) with open-shell character have gained intense attention due to their potential applications in future organic nanoelectronics and spintronics. Among them, NGs bearing a pair of parallel zigzag edges, such as acenes and periacenes (PAs) bestow unique (opto)electronic and magnetic properties owing to their localized non-bonding π-state. However, their reactive zigzag edges impart intrinsic instability, leading to the challenging synthesis. The recent development of synthetic strategies provided access to several π-extended PAs, which were considered unrealistic for decades. Notably, their laterally π-extended structures of zigzag-edged graphene nanoribbons was realised via on-surface synthesis. However, synthesis of π-extended PAs in solution is still in its infancy, more intensive scientific efforts are needed to surpass the existing challenges regarding stability and solubility. This Review provides an overview of recent progress in the synthesis and characterization of PAs through a bottom-up synthetic strategy, including on-surface and solution-phase chemistry. In addition, views on existing challenges and the future prospects are also provided.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:88243 |
| Date | 22 January 2024 |
| Creators | Ajayakumar, M. R., Feng, Xinliang, Ma, Ji |
| Publisher | Wiley-VCH GmbH |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | German |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 1099-0690, 10.1002/ejoc.202101428, info:eu-repo/grantAgreement/European Commission/Horizon2020/881603//Graphene Flagship Core Project 3/GrapheneCore3, info:eu-repo/grantAgreement/European Commission/Horizon2020/819698)//Development of Thiophene Based Conjugated Polymers in Two Dimensions/T2DCP, info:eu-repo/grantAgreement/European Commission/Horizon2020/101017821//Multi-Electron processes for light driven electrodes and electrolytes in conversion and storage of solar energy/LIGHT-CAP |
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