ArticleNature communications2025
Reversible gating of singlet fission by tuning the role of a charge-transfer state.
Article in Nature communications, 2025. 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.
- Protonation-Gated Orthogonal Control of Highly Efficient Molecular Motors With Broad Visible-Light Responsiveness.Angewandte Chemie (International ed. in English) · 2026Article
- Controlling triplet-pair formation in acene-bridged trimers through locally excited-charge-transfer state mixing.Chemical science · 2026Article
- Singlet Fission in Push-Pull Para-Azaquinodimethane Films under the Gaze of Time Resolved Optical and Magnetic Spectroscopy.Angewandte Chemie (International ed. in English) · 2026Article
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Authors and funding
7 authors.
Funding
Abstract
Stimulus-responsive triplet excited states and multiexcitonic logic gates have garnered increasing interest. Singlet fission is an efficient multiple exciton generation process, in which one singlet converts into two triplets. Singlet fission is, however, rarely reported to be switchable by external stimuli. Here we design a meta-diethynylphenylene-linked tetracene dimer featuring pyridyl endgroups that function as an acid/base-responsive switch, enabling the reversible modulation of singlet fission. In its neutral form, the interchromophore charge-transfer state facilitates singlet fission and promotes the formation of a correlated triplet-pair state. Upon treatment with acid, protonation of the pyridyl nitrogens generates a more strongly electron-accepting pyridinium, leading to an intra-chromophore charge-transfer state, which inhibits singlet fission. Finally, an IMPLICATION logic gate is constructed by using acid and base as inputs and monitoring the formation of triplet excited states based on singlet fission.
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Registered trials
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