Collective All‐Carbon Magnetism in Triangulene Dimers **

Abstract: Triangular zigzag nanographenes, such as triangulene and its π‐extended homologues, have received widespread attention as organic nanomagnets for molecular spintronics, and may serve as building blocks for high‐spin networks with long‐range magnetic order, which are of immense fundamental and technological relevance. As a first step towards these lines, we present the on‐surface synthesis and a proof‐of‐principle experimental study of magnetism in covalently bonded triangulene dimers. On‐surface reactions of rationally designed precursor molecules on Au (111) lead to the selective formation of triangulene dimers in which the triangulene units are either directly connected through their minority sublattice atoms, or are separated via a 1,4‐phenylene spacer. The chemical structures of the dimers have been characterized by bond‐resolved scanning tunneling microscopy. Scanning tunneling spectroscopy and inelastic electron tunneling spectroscopy measurements reveal collective singlet–triplet spin excitations in the dimers, demonstrating efficient intertriangulene magnetic coupling.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Collective All‐Carbon Magnetism in Triangulene Dimers ** ; volume:59 ; number:29 ; year:2020 ; pages:12041-12047 ; extent:7 ; Angewandte Chemie / International edition. International edition ; 59, Heft 29 (2020), 12041-12047 (gesamt 7)

Contributors, Places and Time

• Creator: Mishra, Shantanu ; Beyer, Doreen ; Eimre, Kristjan ; Ortiz, Ricardo ; Fernández‐Rossier, Joaquín ; Berger, Reinhard ; Gröning, Oliver ; Pignedoli, Carlo A. ; Fasel, Roman ; Feng, Xinliang ; Ruffieux, Pascal

Further information

• DOI: 10.1002/anie.202002687
• URN: urn:nbn:de:101:1-2022061412010553394676
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:30 AM CEST