Vinylene-linked covalent organic frameworks with fully pyridine-patterned iso-π-conjugation for photoredox catalysis

作者：Fancheng Meng, Zixing Zhang, Xiaomeng Li, Lingjun Zeng, Xue Bai, Biao Jiang, Xin Jin, Jindong Wu, Jun Li, Kui Yang, Fan Zhang · 发表于：Materials Horizons · 年份：2025 · DOI：10.1039/d5mh02132d · 被引用次数：1 · 研究领域：Covalent Organic Framework Applications、Advanced Photocatalysis Techniques、Synthesis and Properties of Aromatic Compounds

-positions of pyridine moieties. Accordingly, they showed almost the same semiconducting properties, including visible-light harvesting, energy levels and band gaps, as well as transient photocurrent responses. Owing to the matched energy band gaps, the as-prepared COFs can efficiently catalyze the conversion of 2-aminothiophenol and aldehydes to benzothiazole derivatives upon visible-light stimulation. Both COFs exhibited similar catalytic efficiency, selectivity, and recyclability toward substrates with different sizes and functional substituents. These results showed that the photocatalytic behaviors of such COFs are dominated by their π-conjugated structures, and not by their pore sizes or shapes.