ArticleJournal of the American Chemical Society2019
Discovery and Elucidation of Counteranion Dependence in Photoredox Catalysis.
Article in Journal of the American Chemical Society, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
34 citing papers in PubMed.
- Photochemical Reaction Discovery Enabled by the Dynamic Speciation of Copper Complexes.Angewandte Chemie (International ed. in English) · 2026Article
- A Bis(arenesulfonyl) Peroxide, an Ambient-Stable Oxidant, Is a Strong p‑Dopant for Organic Semiconductors.Chemistry of materials : a publication of the American Chemical Society · 2026Article
- Enantioselective Contrathermodynamic Olefin Isomerization.Journal of the American Chemical Society · 2026Article
- Counterion-enabled divergent reactivity in dinuclear gold photoredox catalysis.Nature communications · 2026Article
- Fe-BPsalan Complex-Catalyzed Asymmetric 1,3-Dipolar [3 + 2] Cycloaddition of Nitrones with α,β-Unsaturated Acyl Imidazoles.The Journal of organic chemistry · 2026Article
- An anion-binding approach to enantioselective photoredox catalysis.Science (New York, N.Y.) · 2025Article
- Efficient Red Light-Driven Singlet Oxygen Photocatalysis with an Osmium-Based Coulombic Dyad.Angewandte Chemie (International ed. in English) · 2025Article
- Expedient access to bora-butenolide bioisosteres by counteranion-mediated trans-hydroboration of alkynes.Nature communications · 2025Article
- Bichromophoric Ruthenium Complexes for Photocatalyzed Late-Stage Synthesis of Trifluoromethylated Indolizines.The Journal of organic chemistry · 2025Article
- Electrostatic Work Causes Unexpected Reactivity in Ionic Photoredox Catalysts in Low Dielectric Constant Solvents.The journal of physical chemistry. B · 2025Article
- Intervalence Charge Transfer in an Osmium(IV) Tetra(ferrocenylaryl) Complex.Inorganic chemistry · 2025Article
- Modular Synthesis of Dehydroprolines by an Energy-Transfer Enabled Cloke-Wilson Rearrangement.Angewandte Chemie (International ed. in English) · 2025Article
- Counterion Effects in [Ru(bpy)JACS Au · 2024Article
- Ru(II) Oligothienyl Complexes with Fluorinated Ligands: Photophysical, Electrochemical, and Photobiological Properties.Inorganic chemistry · 2024Article
- Article
- AgNature communications · 2024Article
- Article
- Photocatalytic Anti-Markovnikov Hydroamination of Alkenes with Primary Heteroaryl Amines.Journal of the American Chemical Society · 2023Article
- Shining Fresh Light on Complex Photoredox Mechanisms through Isolation of Intermediate Radical Anions.ACS catalysis · 2023Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
Over the past decade, there has been a renewed interest in the use of transition metal polypyridyl complexes as photoredox catalysts for a variety of innovative synthetic applications. Many derivatives of these complexes are known, and the effect of ligand modifications on their efficacy as photoredox catalysts has been the subject of extensive, systematic investigation. However, the influence of the photocatalyst counteranion has received little attention, despite the fact that these complexes are generally cationic in nature. Herein, we demonstrate that counteranion effects exert a surprising, dramatic impact on the rate of a representative photocatalytic radical cation Diels-Alder reaction. A detailed analysis reveals that counteranion identity impacts multiple aspects of the reaction mechanism. Most notably, photocatalysts with more noncoordinating counteranions yield a more powerful triplet excited state oxidant and longer radical cation chain length. It is proposed that this counteranion effect arises from Coulombic ion-pairing interactions between the counteranion and both the cationic photoredox catalyst and the radical cation intermediate, respectively. The comparatively slower rate of reaction with coordinating counteranions can be rescued by using hydrogen-bonding anion binders that attenuate deleterious ion-pairing interactions. These results demonstrate the importance of counteranion identity as a variable in the design and optimization of photoredox transformations and suggest a novel strategy for the optimization of organic reactions using this class of transition metal photocatalysts.
Indexed as
Identifiers
What OpenQuestion holds
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.