ArticleThe journal of physical chemistry letters2023
Triplet Formation in a 9,10-Bis(phenylethynyl)anthracene Dimer and Trimer Occurs by Charge Recombination Rather than Singlet Fission.
Article in The journal of physical chemistry letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 16 citations in OpenAlex.
- Detecting photoinduced symmetry-breaking charge separation with near-zero driving force in a perylene diimide cage.Physical chemistry chemical physics : PCCP · 2026Article
- The Curious Case of Dual Emission in 9,10-Bis(phenylethynyl)anthracene.Journal of the American Chemical Society · 2026Article
- Exciton trapping with a twist.Chemical science · 2026Article
- Janus-Type Photophysics of Rotational Isomers in a Diphenylanthracene Dimer.Angewandte Chemie (International ed. in English) · 2025Article
- Tunable Spin Qubit Pairs in Quantum Dot-Molecule Conjugates.ACS nano · 2025Article
- Distance-Independent Efficiency of Triplet Energy Transfer from π-Conjugated Organic Ligands to Lanthanide-Doped Nanoparticles.Journal of the American Chemical Society · 2024Article
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Authors and funding
6 authors at 4 institutions in 3 countries.
Funding
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Abstract
We present an experimental study investigating the solvent-dependent dynamics of a 9,10-bis(phenylethynyl)anthracene monomer, dimer, and trimer. Using transient absorption spectroscopy, we have discovered that triplet excited state formation in the dimer and trimer molecules in polar solvents is a consequence of charge recombination subsequent to symmetry-breaking charge separation rather than singlet fission. Total internal reflection emission measurements of the monomer demonstrate that excimer formation serves as the primary decay pathway at a high concentration. In the case of highly concentrated solutions of the trimer, we observe evidence of triplet formation without the prior formation of a charge-separated state. We postulate that this is attributed to the formation of small aggregates, suggesting that oligomers mimicking the larger chromophore counts in crystals could potentially facilitate singlet fission. Our experimental study sheds light on the intricate dynamics of the 9,10-bis(phenylethynyl)anthracene system, elucidating the role of solvent- and concentration-dependent factors for triplet formation and charge separation.
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