ArticleChemical science2024
Difluorenoheteroles: topological control of π conjugation in diradicaloids and mixed-valence radical ions.
Article in Chemical science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Annelated N-heterocyclic carbene-derived organic redox system for consecutive visible-light photocatalysis.National science review · 2026Article
- Precision Chemical Design for Reticular Spintronics.Precision chemistry · 2026Review
- Redox-protonation landscape of indene-annulated perylenes: chemodivergent switching of multistate NIR chromophores.Chemical science · 2026Article
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Authors and funding
7 authors.
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Abstract
Two families of difluorenoheterole diradicaloids were synthesized, featuring isomeric ring systems with distinct conjugation topologies. The two types of difluorenoheteroles contain, respectively, a Chichibabin-like motif (CH) and a newly introduced heteroatom-linked triphenylmethyl dyad (TD-X). Combined experimental and theoretical investigations show that the TD-X systems have reduced quinoidal character but the interaction between formal spin centers is sufficiently strong to ensure a singlet ground state. The singlet-triplet energy gaps in the TD-X difluorenoheteroles are strongly affected by the heterocyclic ring, with values of -4.3 and -0.7 kcal mol
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