文献类型：期刊文献

英文题名：Amidation, Esterification, and Thioesterification of a Carboxyl-Functionalized Covalent Organic Framework

作者：Guo, Lei[1,2];Jia, Shang[1];Diercks, Christian S.[1,2];Yang, Xuejing[4,5];Alshmimri, Sultan A.[3];Yaghi, Omar M.[1,2,3]

机构：[1]Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA;[2]Lawrence Berkeley Natl Lab, Kavli Energy NanoSci Inst, Mat Sci Div, Berkeley, CA 94720 USA;[3]King Abdulaziz City Sci & Technol, UC Berkeley KACST Joint Ctr Excellence Nanomat Cl, Riyadh 11442, Saudi Arabia;[4]Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA;[5]East China Univ Sci & Technol, Natl Engn Lab Ind Wastewater Treatment, Shanghai 200237, Peoples R China

年份：2020

卷号：59

期号：5

起止页码：2023

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20195307949632);WOS:【SCI-EXPANDED(收录号:WOS:000502937300001)】；

基金：Synthesis in this work was supported by King Abdulaziz City for Science and Technology (Center of Excellence for Nanomaterials and Clean Energy Applications). We acknowledge Dr. C. Zhu for the help with wide-angle X-ray scattering measurement, the Catalysis Facility of Lawrence Berkeley National Laboratory, supported by the Office of Science of the US Department of Energy under contract No. DE-AC02-05CH11231, for the help with gas adsorption experiments, and College of Chemistry;s NMR facility for resources provided and the staff for their assistance, where instruments are supported in part by NIH S10OD024998.

语种：英文

外文关键词：carboxylic acids; conjugation; covalent organic frameworks; post-synthetic modification; water treatment

摘要：Three new post-synthetic modification reactions, namely amidation, esterification, and thioesterification, were demonstrated on a novel highly crystalline two-dimensional covalent organic framework (COF), COF-616, bearing pre-installed carboxyl groups. The strategy can be used to introduce a large variety of functional groups into COFs and the modifications can be carried out under mild reaction conditions, with high yields, and an easy work-up protocol. As a proof of concept, various chelating functionalities were successfully incorporated into COF-616 to yield a family of adsorbents for efficient removal of several contaminants in the water.