RT Journal Article T1 [19]Starphene: Combined in-solution and on-surface synthesis towards the largest starphene A1 Besteiro-Sáez, Javier A1 Mateo de Doni, Luis Manuel A1 Salaverría, Sergio A1 Wang, Tao A1 Angulo-Portugal, Paula A1 Calupitan, Jan Patrick A1 Rodríguez-Fernández, Jonathan A1 García-Fuente, Amador A1 Ferrer, Jaime A1 Pérez Meirás, María Dolores A1 Corso, Martina A1 Oteyza, Dimas G. de A1 Peña Gil, Diego K1 Starfenos K1 Electrónica molecular K1 Nanotecnología AB Starphenes are structurally appealing threefold symmetric polycyclic aromatic compounds with potential interesting applications in molecular electronics and nanotechnology. This family of star-shaped polyarenes can be regarded as three acenes that are connected through a single benzene ring. In fact, just like acenes, unsubstituted large starphenes are poorly soluble and highly reactive molecules under ambient conditions making their synthesis difficult to achieve. Herein, we report two different synthetic strategies to obtain a starphene formed by 19 cata-fused benzene rings distributed within three hexacene branches. This molecule, which is the largest starphene that has been obtained to date, was prepared by combining solutionphase and on-surface synthesis. [19]Starphene was characterized by high-resolution scanning tunneling microscopy (STM) and spectroscopy (STS) showing a remarkable small HOMO-LUMO transport gap (0.9 eV). PB Wiley SN 1433-7851 YR 2024 FD 2024 LK https://hdl.handle.net/10347/38231 UL https://hdl.handle.net/10347/38231 LA eng NO Besteiro-Sáez, J., Mateo, L.M., Salaverría, S., Wang, T., Angulo-Portugal, P., Calupitan, J.P., Rodríguez-Fernández, J., García-Fuente, A., Ferrer, J., Pérez, D., Corso, M., de Oteyza,D.G., Peña, D. (2024). [19]Starphene: Combined In-Solution and On-Surface Synthesis Towards the Largest Starphene. "Angewandte Chemie International Edition" NO The authors gratefully acknowledge financial support from Spanish MCIN/AEI/ and the European Regional Development Fund (ERDF) through grants PID2022-140845OB-C6, PID2022-139933NB-I00 and PID2022-137078NB-100, from the European Union (EU) through Horizon 2020 (FET-Open project SPRING Grant. no. 863098), ERC SyG MolDAM (951519) and MSCA Postdoctoral Fellowship (Grant Agreement No. 101153230 to JPC), and from Xunta de Galicia (Centro de Investigación do Sistema Universitario de Galicia, 2023–2027, ED431G 2023/03 DS Minerva RD 24 abr 2026