Construction of Fully Conjugated Covalent Organic Frameworks via Facile Linkage Conversion for Efficient Photoenzymatic Catalysis

Yuancheng Wang; Hui Liu; Qingyan Pan; Chenyu Wu; Wenbo Hao; Jie Xu; Renzeng Chen; Jian Liu; Zhibo Li; Yingjie Zhao

doi:10.1021/jacs.0c00923

Construction of Fully Conjugated Covalent Organic Frameworks via Facile Linkage Conversion for Efficient Photoenzymatic Catalysis

J Am Chem Soc. 2020 Apr 1;142(13):5958-5963. doi: 10.1021/jacs.0c00923. Epub 2020 Mar 16.

Authors

Yuancheng Wang¹, Hui Liu¹, Qingyan Pan¹, Chenyu Wu¹, Wenbo Hao¹, Jie Xu¹, Renzeng Chen¹, Jian Liu², Zhibo Li¹, Yingjie Zhao¹

Affiliations

¹ Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
² College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.

PMID: 32163267
DOI: 10.1021/jacs.0c00923

Abstract

Covalent organic frameworks (COFs) with improved stability and extended π-conjugation structure are highly desirable. Here, two imine-linked COFs were converted into ultrastable and π-conjugated fused-aromatic thieno[3,2-c]pyridine-linked COFs (B-COF-2 and T-COF-2). The successful conversion was confirmed by infrared and solid-state ¹³C NMR spectroscopies. Furthermore, the structures of thieno[3,2-c]pyridine-linked COFs were evaluated by TEM and PXRD. It is noted that a slight difference in the structure leads to totally different photoactivity. The fully π-conjugated T-COF-2 containing triazine as the core exhibited an excellent photocatalytic NADH regeneration yield of 74% in 10 min.