ArticleChemical science2017
Laboratory-scale photoredox catalysis using hydrated electrons sustainably generated with a single green laser.
Article in Chemical science, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Determination of the Generation Efficiency and Reductive Reactivity of the Upconverted Hot Electrons from Mn-Doped Quantum Dots under Weak Visible Light.Journal of the American Chemical Society · 2025Article
- Excited Organic Radicals in Photoredox Catalysis.JACS Au · 2025Review
- Sensitizer-controlled photochemical reactivityChemical science · 2022Article
- Red Light-Based Dual Photoredox Strategy Resembling the Z-Scheme of Natural Photosynthesis.JACS Au · 2022Article
- Sensitization-initiated electron transferChemical science · 2021Article
- Controlling Spin-Correlated Radical Pairs with Donor-Acceptor Dyads: A New Concept to Generate Reduced Metal Complexes for More Efficient Photocatalysis.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021Article
- Silane- and peroxide-free hydrogen atom transfer hydrogenation using ascorbic acid and cobalt-photoredox dual catalysis.Nature communications · 2021Article
- Aryl dechlorination and defluorination with an organic super-photoreductant.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2020Article
- Triplet Energy Transfer from Ruthenium Complexes to Chiral Eniminium Ions: Enantioselective Synthesis of Cyclobutanecarbaldehydes by [2+2] Photocycloaddition.Angewandte Chemie (International ed. in English) · 2020Article
- Visible-light-induced addition of carboxymethanide to styrene from monochloroacetic acid.Beilstein journal of organic chemistry · 2020Article
- Bimolecular proximity of a ruthenium complex and methylene blue within an anionic porous coordination cage for enhancing photocatalytic activity.Chemical science · 2019Article
- Catalytic Strategy for Regioselective Arylethylamine Synthesis.Journal of the American Chemical Society · 2019Article
- A Laser Driven Flow Chemistry Platform for Scaling Photochemical Reactions with Visible Light.ACS central science · 2019Article
- Sensitized triplet-triplet annihilation upconversion in water and its application to photochemical transformations.Chemical science · 2018Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The ruthenium-tris-bipyridyl dication as catalyst combined with the ascorbate dianion as bioavailable sacrificial donor provides the first regenerative source of hydrated electrons for chemical syntheses on millimolar scales. This electron generator is operated simply by illumination with a frequency-doubled Nd:YAG laser (532 nm) running at its normal repetition rate. Much more detailed information than by product studies alone was obtained by photokinetical characterization from submicroseconds (time-resolved laser flash photolysis) up to one hour (preparative photolysis). The experiments on short timescales established a reaction mechanism more complex than previously thought, and proved the catalytic action by unchanged concentration traces of the key transients over a number of flashes so large that the accumulated electron total surpassed the catalyst concentration many times. Preparative photolyses revealed that the sacrificial donor greatly enhances the catalyst stability through quenching the initial metal-to-ligand charge-transfer state before destructive dd states can be populated from it, such that the efficiency of this electron generator is no longer limited by catalyst decomposition but by electron scavenging by the accumulating oxidation products of the ascorbate. Applications covered dechlorinations of selected aliphatic and aromatic chlorides and the reduction of a model ketone. All these substrates are impervious to photoredox catalysts exhibiting lower reducing power than the hydrated electron, but the combination of an extremely negative standard potential and a long unquenched life allowed turnover numbers up to 1400 with our method.
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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.