{"title":"Designed Synthesis of a 2D Porphyrin-Based sp2 Carbon-Conjugated Covalent Organic Framework for Heterogeneous Photocatalysis","authors":"Rufan Chen, Ji-Long Shi, Yuan Ma, Guiqing Lin, Prof.?Dr. Xianjun Lang, Prof.?Dr. Cheng Wang","doi":"10.1002/anie.201902543","DOIUrl":null,"url":null,"abstract":"<p>The construction of stable covalent organic frameworks (COFs) for various applications is highly desirable. Herein, we report the synthesis of a novel two-dimensional (2D) porphyrin-based sp<sup>2</sup> carbon-conjugated COF (Por-sp<sup>2</sup>c-COF), which adopts an eclipsed AA stacking structure with a Brunauer—Emmett—Teller surface area of 689 m<sup>2</sup> g<sup>−1</sup>. Owing to the C=C linkages, Por-sp<sup>2</sup>c-COF shows a high chemical stability under various conditions, even under harsh conditions such as 9 <span>m</span> HCl and 9 <span>m</span> NaOH solutions. Interestingly, Por-sp<sup>2</sup>c-COF can be used as a metal-free heterogeneous photocatalyst for the visible-light-induced aerobic oxidation of amines to imines. More importantly, in comparison to imine-linked Por-COF, the inherent structure of Por-sp<sup>2</sup>c-COF equips it with several advantages as a photocatalyst, including reusability and high photocatalytic performance. This clearly demonstrates that sp<sup>2</sup> carbon-linked 2D COFs can provide an interesting platform for heterogeneous photocatalysis.</p>","PeriodicalId":125,"journal":{"name":"Angewandte Chemie International Edition","volume":null,"pages":null},"PeriodicalIF":16.1000,"publicationDate":"2019-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/anie.201902543","citationCount":"334","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Angewandte Chemie International Edition","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/anie.201902543","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 334
Abstract
The construction of stable covalent organic frameworks (COFs) for various applications is highly desirable. Herein, we report the synthesis of a novel two-dimensional (2D) porphyrin-based sp2 carbon-conjugated COF (Por-sp2c-COF), which adopts an eclipsed AA stacking structure with a Brunauer—Emmett—Teller surface area of 689 m2 g−1. Owing to the C=C linkages, Por-sp2c-COF shows a high chemical stability under various conditions, even under harsh conditions such as 9 m HCl and 9 m NaOH solutions. Interestingly, Por-sp2c-COF can be used as a metal-free heterogeneous photocatalyst for the visible-light-induced aerobic oxidation of amines to imines. More importantly, in comparison to imine-linked Por-COF, the inherent structure of Por-sp2c-COF equips it with several advantages as a photocatalyst, including reusability and high photocatalytic performance. This clearly demonstrates that sp2 carbon-linked 2D COFs can provide an interesting platform for heterogeneous photocatalysis.
期刊介绍:
Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.