ArticleJournal of the American Chemical Society2026
Metal-Free Ferromagnetism in Triangulene Two-Dimensional Frameworks.
Article in Journal of the American Chemical Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Precision Chemical Design for Reticular Spintronics.Precision chemistry · 2026Review
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Achieving room-temperature ferromagnetism in purely organic two-dimensional (2D) materials remains a fundamental challenge. Here, we introduce a mixed-topology strategy to induce strong ferromagnetic (FM) coupling in metal-free 2D frameworks. By covalently connecting non-Kekulé polycyclic aromatic hydrocarbon (PAH) radicals with distinct sublattice topologies, we rationally break inversion and time-reversal symmetries and thereby unlock intrinsic FM order in π-conjugated 2D networks. Leveraging this concept, we computationally designed a family of 32 FM 2D frameworks featuring spin-1/2 and hybrid spin-1/2-spin-1 honeycomb lattices. First-principles calculations revealed that these organic 2D frameworks are robust FM semiconductors with tunable spin-dependent bandgaps (0.9-3.8 eV). Remarkably, they exhibit record-high FM couplings of up to 127 meV, spin-splitting energies exceeding 2 eV, and crossover (Curie) temperatures above 550 K, ensuring ferromagnetic order stability far beyond room temperature. The strong FM interaction originates from substantial overlap between half-filled, delocalized π-orbitals, which enhances direct magnetic exchange while suppressing antiferromagnetic superexchange. These findings establish an effective design principle for metal-free FM semiconductors and pave the way for flexible magnets for next-generation spintronics and quantum technologies.
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Registered trials
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