Crystalline Covalent Triazine Frameworks by In Situ Oxidation of Alcohols to Aldehyde Monomers. Issue 37 (20th August 2018)

• Record Type: Journal Article
• Authors: Liu, Manying; Huang, Qi; Wang, Shaolei; Li, Ziyong; Li, Buyi; Jin, Shangbin; Tan, Bien
• Is Part Of: Angewandte Chemie international edition. Volume 57:Issue 37(2018)
• Page Start: 11968
• Page End: 11972
• Publication Date: 2018-08-20
• Subjects: covalent organic frameworks (COFs) -- covalent triazine frameworks -- hydrogen evolution -- oxidation -- photocatalysis; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201806664
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Covalent triazine frameworks (CTFs) with aromatic triazine linkages have recently received increasing interest for various applications because of their rich nitrogen content and high chemical stability. Owing to the strong aromatic C=N bond and high chemical stability, only a few CTFs are crystalline, and most CTFs are amorphous. Herein we report a new general strategy to give highly crystalline CTFs by in situ formation of aldehyde monomers through the controlled oxidation of alcohols. This general strategy allows a series of crystalline CTFs with different monomers to be prepared, which are shown to have higher thermal stability and enhanced performance in photocatalysis as compared with the less crystalline or amorphous CTFs. This open‐system approach is very simple and convenient, which presents a potential pathway to large‐scale industrial production of crystalline CTFs. Abstract : COF mixture : Covalent triazine frameworks (CTFs) a class of covalent organic framework (COF) were synthesized by in situ formation of aldehyde monomers by the controlled oxidation of alcohols in an open system. This approach is very simple, convenient, and general and presents a potential pathway to large‐scale industrial production of crystalline CTFs.