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Updated: Jun 26, 2026
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[(DPEPhos)(bcp)Cu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Enhanced visible-light photoredox catalysis with rubicene-embedded polycyclic aromatic hydrocarbons (PAHs)
Chunchun Mi1, Liangzhuo Ma1, Xuan Wen1
1College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences Beijing 100049 China shiqinqin@ucas.ac.cn.
None:
Visible-light-absorbing, metal-free photoredox catalysts are attractive because they are inexpensive and offer tunable redox potentials. However, the use of organic photocatalysts is often limited by their incompatibility with strongly acidic or basic media and by short excited-state lifetimes. Here, we report a series of rubicene-based organic photoredox catalysts that operate under visible-light irradiation and promote substitution and addition reactions. Mechanistic studies, including radical-trapping experiments and Stern-Volmer fluorescence-quenching analyses, support a single-electron-transfer (SET) pathway. Notably, the rubicene-based catalysts exhibit excellent operational stability and higher reactivity than commercial metal-free photocatalysts, indicating broad scope and high tolerance in metal-free photoredox transformations.
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