ArticleNature communications2023
Extent of carbon nitride photocharging controls energetics of hydrogen transfer in photochemical cascade processes.
Article in Nature communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Incorporation of Organic Counter-Cations Into Poly(Heptazine Imide) Networks for Promoting Proton-Coupled Electron Transfer During Photocatalytic HAngewandte Chemie (International ed. in English) · 2026Article
- Photochemical N-dealkylation of Tertiary Amines Coupled With Photocharging of Poly(Heptazine Imides).Angewandte Chemie (International ed. in English) · 2026Article
- Organic Synthesis Mediated by Carbon Nitride Photocatalysis and Photocharged Carbon Nitrides.Accounts of chemical research · 2026Article
- Polymeric Carbon Nitride-Photocatalyzed Aerobic Epoxidation of Alkenes: Application to a Sustainable Synthesis of Rose Oxide.ChemSusChem · 2025Article
- A Mind Map to Address the Next Generation of Artificial Photosynthesis Experiments.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Carbon nitride caught in the act of artificial photosynthesis.Nature communications · 2025Article
- Optically Gated Dissociation of a Heptazinyl Radical Liberates HACS physical chemistry Au · 2024Article
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Authors and funding
6 authors.
Funding
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Abstract
Graphitic carbon nitride is widely studied in organic photoredox catalysis. Reductive quenching of carbon nitride excited state is postulated in many photocatalytic transformations. However, the reactivity of this species in the turn over step is less explored. In this work, we investigate electron and proton transfer from carbon nitride that is photocharged to a various extent, while the negative charge is compensated either by protons or ammonium cations. Strong stabilization of electrons by ammonium cations makes proton-coupled electron transfer uphill, and affords air-stable persistent carbon nitride radicals. In carbon nitrides, which are photocharged to a smaller extent, protons do not stabilize electrons, which results in spontaneous charge transfer to oxidants. Facile proton-coupled electron transfer is a key step in the photocatalytic oxidative-reductive cascade - tetramerization of benzylic amines. The feasibility of proton-coupled electron transfer is modulated by adjusting the extent of carbon nitride photocharging, type of counterion and temperature.
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