期刊
CHEMICAL PHYSICS REVIEWS
卷 3, 期 2, 页码 -出版社
AIP Publishing
DOI: 10.1063/5.0084554
关键词
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资金
- We thank the National Science Foundation (Grant No. CHE-1846831), the Welch Foundation (Grant No. E-1887), and the University of Houston, through the High Priority Area Research Seed Grants, for funding our groupapos
- s work on photosensitizer design and a [CHE-1846831]
- National Science Foundation [E-1887]
- Welch Foundation
- University of Houston, through the High Priority Area Research Seed Grants
Photoredox catalysis is crucial in many applications, with its activity depending on the photophysical and electrochemical properties of photocatalysts, especially in challenging organic synthesis reactions.
Photoredox catalysis has been prominent in many applications, including solar fuels, organic synthesis, and polymer chemistry. Photocatalytic activity directly depends on the photophysical and electrochemical properties of photocatalysts in both the ground state and excited state. Controlling those properties, therefore, is imperative to achieve the desired photocatalytic activity. Redox potential is one important factor that impacts both the thermodynamic and kinetic aspects of key elementary steps in photoredox catalysis. In many challenging reactions in organic synthesis, high redox potentials of the substrates hamper the reaction, leading to slow conversion. Thus, the development of photocatalysts with extreme redox potentials, accompanied by potent reducing or oxidizing power, is required to execute high-yielding thermodynamically demanding reactions. In this review, we will introduce strategies for accessing extreme redox potentials in photocatalytic transformations. These include molecular design strategies for preparing photosensitizers that are exceptionally strong ground-state or excited-state reductants or oxidants, highlighting both organic and metal-based photosensitizers. We also outline methodological approaches for accessing extreme redox potentials, using two-photon activation, or combined electrochemical/photochemical strategies to generate potent redox reagents from precursors that have milder potentials. Published under an exclusive license by AIP Publishing.
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