Affiliation:
1. Chongqing Key Laboratory of Soft‐Matter Material Chemistry and Function Manufacturing The Key Laboratory of Applied Chemistry of Chongqing Municipality College of Chemistry and Chemical Engineering Southwest University Chongqing 400715 P. R. China
Abstract
AbstractCondensation of 3,3′‐diamino‐2,2′‐ethylene‐bridged azobenzene with 1,2,4,5‐tetrakis‐(4‐formylphenyl) benzene produces a visible light responsive porous 2D covalent organic framework, COF‐bAzo‐TFPB, with a large surface area, good crystallinity, and thermal and chemical stability. The results demonstrate that the elaborated designed linker can make azo unit on the COF‐bAzo‐TFPB skeleton undergo reversible photoisomerization. This work expands the application scope of covalent organic frameworks in photo‐controlled release, uptake of guest molecules, dynamic photoswitching, and UV‐sensitive functions.
Funder
Chongqing Municipal Education Commission
Subject
Materials Chemistry,Polymers and Plastics,Organic Chemistry