Nowadays, organic boron-containing dyes have garnered considerable interest as efficient photocatalysts owing to their advantages including large molar absorption coefficients, minimal bandgaps, and easy excitation. Incorporating various boron-containing dyes into porous organic polymers effectively addresses the issue of small boron-containing molecules, which are difficult to separate and prone to photobleaching. Nevertheless, the integration of boron-containing dyes into vinylene-linked conjugated porous organic polymers (POPs) remains unexplored. This study reports the synthesis of two distinct vinylene-linked fully conjugated POPs by reacting difluoroboron β-diketonate complexes with reactive methyl groups and a carbazole-bearing aldehyde. The formation of effective D–A interaction between the difluoroboron complexes and the carbazole subunit enhances charge transport and separation, thereby improving photocatalytic efficiency. CTBA-B2, with a higher content of the difluoroboron complex, exhibits superior catalytic activity in both oxidation and reduction reactions, and is capable of efficiently catalyzing sulfide oxidations as well as dehalogenation reactions in green ethanol solvents.

中文翻译：

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基于二氟硼 β-二酮酸盐络合物的乙烯基连接全共轭多孔有机聚合物，用于绿色高效的光催化


如今，有机含硼染料因其摩尔吸收系数大、带隙小和易激发等优点而作为高效的光催化剂引起了相当大的兴趣。将各种含硼染料掺入多孔有机聚合物中，可有效解决含硼小分子难以分离且容易发生光漂白的问题。然而，将含硼染料整合到乙烯基连接的共轭多孔有机聚合物 （POP） 中仍有待探索。本研究报道了通过将二氟硼 β-酮酸酯配合物与反应性甲基和含咔唑醛反应，合成了两种不同的乙烯基连接的完全共轭 POP。二氟硼络合物和咔唑亚基之间形成有效的 D-A 相互作用增强了电荷传输和分离，从而提高了光催化效率。CTBA-B2 具有较高含量的二氟硼络合物，在氧化和还原反应中均表现出优异的催化活性，并且能够在绿色乙醇溶剂中高效催化硫化物氧化和脱卤反应。