ArticleChemical science2021
Halogenation of a twisted non-polar π-system as a tool to modulate phosphorescence at room temperature.
Article in Chemical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 30 citations in OpenAlex.
- Minimum effort, maximum effect: modulating twisted intramolecular charge transfer for ultralong room temperature phosphorescence.Chemical science · 2026Article
- High energy triplet-state manipulation via temperature-responsive twisted hetero-annulation systems.Nature communications · 2026Article
- Polymer matrix drives thermal stimulation-caused dynamic phosphorescence in dispersed chromophores.Nature communications · 2026Article
- Insights into mechanistic interpretation of crystalline-state reddish phosphorescence of non-planar π-conjugated organoboron compounds.Chemical science · 2024Article
- Thia[Chemical science · 2024Article
- Evolution of organic phosphor through precision regulation of nonradiative decay.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Highly Efficient Purely Organic Phosphorescence Light-Emitting Diodes Employing a Donor-Acceptor Skeleton with a Phenoxaselenine Donor.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Halide-containing organic persistent luminescent materials for environmental sensing applications.Chemical science · 2022Review
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Halogenation of a twisted three-fold symmetric hydrocarbon with F, Cl or Br leads to strong modulation of triplet-triplet annihilation and dual phosphorescence, one thermally activated and the other very persistent and visible by eye, with different relative contributions depending on the halide. The room temperature phosphorescence is highly unusual given the absence of lone-pair-contributing heteroatoms. The interplay between the spin-orbit coupling matrix elements and the spatial configuration of the triplet state induces efficient intersystem crossing and thus room temperature phosphorescence even without relying on heteroatomic electron lone pairs. A ninefold increase of the ISC rate after introduction of three bromine atoms is accompanied by a much higher 34-fold increase of phosphorescence rate.
Identifiers
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.