ArticleThe journal of physical chemistry letters2023
Donor, Acceptor, and Molecular Charge Transfer Emission All in One Molecule.
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 5 papers.
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Who cites it
5 citing papers in PubMed.
- Effects of Donor Rigidity on Coumarin Delayed Emission: New Tricks from Old Materials.The journal of physical chemistry letters · 2026Article
- Electric-Field Quantum Sensing Exploiting a Photogenerated Charge-Transfer Triplet State in an Organic Molecule.Journal of the American Chemical Society · 2025Article
- Excitation-Dependent Quadruple-Level Emission from an Isolated Molecule for Dynamic Information Encryption.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Exploring the Versatile Uses of Triplet States: Working Principles, Limitations, and Recent Progress in Phosphorescence, TADF, and TTA.ACS applied optical materials · 2024Review
- The Golden Age of Thermally Activated Delayed Fluorescence Materials: Design and Exploitation.Chemical reviews · 2024Review
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The molecular photophysics in the thermally activated delayed fluorescence (TADF) spiro-acridine-anthracenone compound, ACRSA, is dominated by the rigid orthogonal spirocarbon bridging bond between the donor and acceptor. This critically decouples the donor and acceptor units, yielding photophysics, which includes (dual) phosphorescence and the molecular charge transfer (CT) states giving rise to TADF, that are dependent upon the excitation wavelength. The molecular singlet CT state can be directly excited, and we propose that supposed "spiro-conjugation" between acridine and anthracenone is more accurately an example of intramolecular through-space charge transfer. In addition, we show that the lowest local and CT triplet states are highly dependent upon spontaneous polarization of the environment, leading to energy reorganization of the triplet states, with the CT triplet becoming lowest in energy, profoundly affecting phosphorescence and TADF, as evident by a (thermally controlled) competition between reverse intersystem crossing and reverse internal conversion, i.e., dual delayed fluorescence (DF) mechanisms.
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Registered trials
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