2026-06-29T02:49:58Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1203202025-08-05T16:58:43Zcom_20.500.14352_14col_20.500.14352_15

Coronene-Based 2D Networks by On-Surface Skeletal Rearrangement of Sumanene Precursors Pérez-Elvira, Elena Barragán, Ana Gallardo, Aurelio Santos Barahona, José Manuel Martín-Fuentes, Cristina Lauwaet, Koen Gallego, José M. Miranda, Rodolfo Sakurai, Hidehiro Urgel, José I. Björk, Jonas Martín León, Nazario Écija, David The 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. 2025-05-21T10:42:17Z 2025-05-21T10:42:17Z 2024 journal article Pérez‐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.202414583 https://hdl.handle.net/20.500.14352/120320 https://doi.org/10.1002/anie.202414583 https://onlinelibrary.wiley.com/doi/full/10.1002/anie.202414583 eng info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-108532GB-I00/ES/DISEÑO EN SUPERFICIES Y PROPIEDADES FISICO-QUIMICAS DE POLIMEROS PI-CONJUGADOS/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-114653RB-I00/ES/SINTESIS "BOTTON-UP" DE NANOESTRUCTURAS DE CARBONO: APLICACIONES PARA LA ENERGIA/ PID2022-136961NB-I00 JP21H05233 JP21H05233 JP21H05233 JP21H05233 http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 International Wiley