期刊
ACS CATALYSIS
卷 10, 期 1, 页码 210-215出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.9b03606
关键词
acridinium salts; catalyst design; energy transfer; metalation; photoredox catalysis
资金
- Swiss National Science Foundation [BSSGI0-155902/1, 175746]
- University of Basel
- German National Academy of Sciences Leopoldina
- NCCR Molecular Systems Engineering
- Swiss National Science Foundation (SNF) [BSSGI0_155902] Funding Source: Swiss National Science Foundation (SNF)
Control over redox states and spin multiplicity of photo catalysts throughout a catalytic cycle is crucial for selective and efficient photocatalytic processes. However, the rational design of photocatalysts is often hampered by the mechanistic complexity and low modularity of the catalyst structure. Herein, we demonstrate a photophysical study of diverging photocatalytic pathways that guides the design of organic acridinium catalysts to complement polypyridyl transition metal systems. A combined halogen metal exchange/directed ortho-metalation provides reagents for a broad range of modular acridinium catalysts with fine-tuned photophysical and photochemical properties such as excited-state lifetimes, redox potentials, and photostabilities poised to refine organocatalytic photoredox methodology.
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