ArticleChemical science2020
Organic room-temperature phosphorescence from halogen-bonded organic frameworks: hidden electronic effects in rigidified chromophores.
Article in Chemical science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Predicting room temperature phosphorescence of new organic molecules by combining physical models and data-driven methods.Chemical science · 2026Article
- Stimuli-Responsive Triplet Emission and X-Ray Scintillation via Reversible Structural Switching in Pyromellitic Diimide Cocrystals.Angewandte Chemie (International ed. in English) · 2026Article
- Observation of thermally activated intersystem crossing in room-temperature phosphorescence of weakly donor-acceptor-donor π-ternary molecules.Chemical science · 2026Article
- Ambient Phosphorescence From Donor-Acceptor Bola-Amphiphilic Heterodimers in Aqueous Media.Chemistry, an Asian journal · 2026Article
- Enabling technology for accelerated discovery of supramolecular materials.Chemical science · 2025Review
- Halogen Impact on the Supramolecular Organization of Chiral Phthalimide Emitters Displaying Room Temperature Phosphorescence.Chemistry (Weinheim an der Bergstrasse, Germany) · 2024Article
- Utilizing weakly donor-acceptor ternary π-conjugated architecture to achieve single-component white luminescence and stimulus-responsive room-temperature phosphorescence.Chemical science · 2024Article
- Direct Population of Triplet States for Efficient Organic Afterglow through the Intra/Intermolecular Heavy-Atom Effect.Molecules (Basel, Switzerland) · 2024Article
- Asymmetrically bridged aroyl-Chemical science · 2022Article
- Halide-containing organic persistent luminescent materials for environmental sensing applications.Chemical science · 2022Review
- Halogen bonding regulated functional nanomaterials.Nanoscale advances · 2021Review
Corrections and comments
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Development of purely organic materials displaying room-temperature phosphorescence (RTP) will expand the toolbox of inorganic phosphors for imaging, sensing or display applications. While molecular solids were found to suppress non-radiative energy dissipation and make the RTP process kinetically favourable, such an effect should be enhanced by the presence of multivalent directional non-covalent interactions. Here we report phosphorescence of a series of fast triplet-forming tetraethyl naphthalene-1,4,5,8-tetracarboxylates. Various numbers of bromo substituents were introduced to modulate intermolecular halogen-bonding interactions. Bright RTP with quantum yields up to 20% was observed when the molecule is surrounded by a Br⋯O halogen-bonded network. Spectroscopic and computational analyses revealed that judicious heavy-atom positioning suppresses non-radiative relaxation and enhances intersystem crossing at the same time. The latter effect was found to be facilitated by the orbital angular momentum change, in addition to the conventional heavy-atom effect. Our results suggest the potential of multivalent non-covalent interactions for excited-state conformation and electronic control.
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Registered trials
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