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Updated: Dec 11, 2025

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

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AIEgenとCalixareneのSupramolecular Assemblyによる置換活性化された精密フォトセラノスティクス

Hai-Tao Feng1, Yuanyuan Li2, Xingchen Duan3

  • 1AIE Research Center, Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, China.

Journal of the American Chemical Society
|August 20, 2020
PubMed
まとめ

この研究は,光ダイナミック療法 (PDT) で暗黒毒性の問題を克服するための新しい超分子戦略を導入しています. ホスト・ゲストシステムを使用すると 光敏感剤は腫瘍部位のみで活性化され 副作用が少ない効果的な癌治療が可能になります

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Photochemical Electrocyclic Reactions: Stereochemistry

The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the para...
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