EDOT-Decorated Covalent Organic Polymers as Versatile Metal-Free Photocatalysts for Organic Transformations
作者:Wan-Kai An、Xin Xu、Shi-Jia Zheng、Ya-Nan Du、Jiaxuan Ouyang、Li-Xia Xie、Yun-Lai Ren、Manman He、Cai-Ling Fan、Zhenliang Pan、Yi-Han Li
DOI:10.1021/acscatal.3c01281
日期:2023.7.21
Covalent organic polymers (COPs) with conjugated systems and chromophores are often used as super-organic dyes and have potential in photocatalysis. It is necessary to exploit heterogeneous metal-free photocatalysts with wide applicability and high efficiency. 3,4-Ethylenedioxythiophene (EDOT) here was designed as the photoactive unit and constructed into the EDOT-conjugated microporous polymer (EDOT-CMP)
具有共轭体系和发色团的共价有机聚合物(COP)通常用作超有机染料,在光催化方面具有潜力。有必要开发适用性广、效率高的非均相非金属光催化剂。3,4-乙烯二氧噻吩(EDOT)被设计为光活性单元,并构建成EDOT共轭微孔聚合物(EDOT-CMP)和EDOT共价三嗪骨架(EDOT-CTF)。两种合成的 EDOT-COP 的光电性能因此得到增强。值得注意的是,EDOT-三嗪赋予EDOT-CTF明显的供体-受体结构,从而产生良好的激子解离效率。EDOT-COP 被证明是用于光氧化还原反应的多功能光催化剂。至少八次转换,例如EDOT-COP,尤其是 EDOT-CTF,可以顺利促进苄胺(85-> 99% 产率)的氧化偶联以及烯烃(80-96% 产率)和吲哚(88-99% 产率)中 C-S 键的构建。EDOT-COPs 对罗丹明 B 的降解也表现出较高的光活性。本文对 EDOT-COPs 的研究为广泛应用的