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Updated: Jul 4, 2025

[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
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Ag3PO4可使可见光驱动的 [2 + 2] 和 [4 + 2] 周环反应产生长寿命的基离子

Lirong Guo1, Rongchen Chu1, Xinyu Hao1

  • 1Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering Shandong University Jinan, 250100, Jinan, China.

Nature communications
|February 1, 2024
PubMed
概括

银酸盐 (Ag3PO4) 通过稳定基离子稳定化学合成的高效光催化,显著延长它们的寿命,以改善可见光下的反应效率.

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Pericyclic reactions are organic reactions that occur via a concerted mechanism without generating any intermediates. The reactions proceed through the movement of electrons in a closed loop to form a cyclic transition state, where rearrangement of the σ and π bonds yields specific products.
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Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
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The presence of electron-donating, electron-withdrawing, or conjugating groups adjacent to a radical center, imparts electronic stabilization to the radicals. Examples of such electronically-stabilized radicals are triphenylmethyl, tetramethylpiperidine‐N‐oxide, and 2,2‐diphenyl‐1‐picrylhydrazyl. These radicals are remarkably stable and are known as persistent radicals. Some of the persistent radicals can even be isolated and purified.
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