Pérez-Elvira, ElenaBarragán, AnaGallardo, AurelioSantos Barahona, José ManuelMartín-Fuentes, CristinaLauwaet, KoenGallego, José M.Miranda, RodolfoSakurai, HidehiroUrgel, José I.Björk, JonasMartín León, NazarioÉcija, David2025-05-212025-05-212024Pérez‐Elvira, Elena, et al. «Coronene‐Based 2D Networks by On‐Surface Skeletal Rearrangement of Sumanene Precursors». Angewandte Chemie International Edition, vol. 64, n.o 2, enero de 2025, p. e202414583. https://doi.org/10.1002/anie.202414583.10.1002/anie.202414583https://hdl.handle.net/20.500.14352/120320The design of novel low-dimensional carbon materials is at the forefront of modern chemistry. Recently, on-surface covalent synthesis has emerged as a powerful strategy to synthesize previously precluded compounds and polymers. Here, we report a scanning probe microscopy study, complemented by theoretical calculations, on the sequential skeletal rearrangement of sumanene-based precursors into a coronene-based organometallic network by stepwise intra- and inter-molecular reactions on Au(111). Interestingly, upon higher annealing, the formed organometallic networks evolve into two-dimensional coronene-based covalently linked patches through intermolecular homocoupling reactions. A new reaction mechanism is proposed based on the role of C−Au−C motifs to promote two stepwise carbon-carbon couplings to form cyclobutadiene bridges. Our results pave avenues for the conversion of molecular precursors on surfaces, affording the design of unexplored two-dimensional organometallic and covalent materials.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articlehttps://doi.org/10.1002/anie.202414583https://onlinelibrary.wiley.com/doi/full/10.1002/anie.202414583open access54L65On-surface SynthesisC60 fragmentsScanning Tunneling MicroscopyAtomic Force MicroscopyQuímica23 Química