ArticleNano letters2023
Emergence of π-Magnetism in Fused Aza-Triangulenes: Symmetry and Charge Transfer Effects.
Article in Nano letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 22 citations in OpenAlex.
- Radical-Based On-Surface Transformation of Nonplanar Aromatics Into Nonbenzenoid Nanographenes.Angewandte Chemie (International ed. in English) · 2026Article
- DesignerNational science review · 2026Review
- TailoringAngewandte Chemie (International ed. in English) · 2025Article
- Multireference Theory of Scanning Tunneling Spectroscopy Beyond One-Electron Molecular Orbitals: Can We Image Molecular Orbitals?Journal of the American Chemical Society · 2025Article
- On-Surface Synthesis of a Ferromagnetic Molecular Spin Trimer.Journal of the American Chemical Society · 2025Article
- Magnetic Moment and Spin-State Transitions in Twisted Graphene Nanostructures.The journal of physical chemistry letters · 2025Article
- Physics and Chemistry of Two-Dimensional Triangulene-Based Lattices.Accounts of chemical research · 2025Article
- Beyond Spin Models in Orbitally Degenerate Open-Shell Nanographenes.Nano letters · 2024Article
- Prediction of metal-free Stoner and Mott-Hubbard magnetism in triangulene-based two-dimensional polymers.Science advances · 2024Article
Corrections and comments
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Authors and funding
9 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
On-surface synthesis has paved the way toward the fabrication and characterization of conjugated carbon-based molecular materials that exhibit π-magnetism such as triangulenes. Aza-triangulene, a nitrogen-substituted derivative, was recently shown to display rich on-surface chemistry, offering an ideal platform to investigate structure-property relations regarding spin-selective charge transfer and magnetic fingerprints. Herein, we study electronic changes upon fusion of single molecules into larger dimeric derivatives. We show that the closed-shell structure of aza-triangulene on Ag(111) leads to closed-shell dimers covalently coupled through sterically accessible carbon atoms. Meanwhile, its open-shell structure on Au(111) leads to coupling via atoms displaying a high spin density, resulting in symmetric or asymmetric products. Interestingly, whereas all dimers on Au(111) exhibit similar charge transfer properties, only asymmetric ones show magnetic fingerprints due to spin-selective charge transfer. These results expose clear relationships among molecular symmetry, charge transfer, and spin states of π-conjugated carbon-based nanostructures.
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