ArticleAngewandte Chemie (International ed. in English)2024
π-Extended 4,5-Fused Bis-Fluorene: Highly Open-Shell Compounds and their Cationic Tetrathiafulvalene Derivatives.
Article in Angewandte Chemie (International ed. in English), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Backbone Engineering of Carbon-Centered NHC-Derived Diradicals: From Electronic State Tuning to High-Performance Organic Field-Effect Transistors.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Aromaticity-Induced Spin State Switching and High-Spin States in Non-Alternant Polyradicals.Journal of computational chemistry · 2026Article
- Cethrene's Catch-22: Is Trading Magnetism for Bistability Inevitable?Organic letters · 2025Article
- Planar, Twisted, or Curved Extended Tetrathiafulvalenes with Polycyclic Aromatic Hydrocarbon Cores Featuring Five-Membered Rings.Chemistry, an Asian journal · 2025Review
- π-Extended 4,5-Fused Bis-Fluorene: Highly Open-Shell Compounds and their Cationic Tetrathiafulvalene Derivatives.Angewandte Chemie (International ed. in English) · 2024Article
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6 authors.
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Abstract
The synthesis of diradical organic compounds has garnered significant attention due to their thermally accessible spin inversion and optoelectronic properties. Yet, preparing such stable structures with high open-shell behavior remains challenging. Herein, we report the synthesis and properties of four π-extended, fused fluorene derivatives with high diradical character, taking advantage of a molecular design where the closed-shell does not include any Clar sextet, comparatively to a maximum of 5 in the corresponding open-shell state. This led to an unusual open-shell triplet ground state with an outstanding singlet-triplet energy difference (ΔE
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