Pyridinium-derived polycationic covalent organic polymers for aromatic C-H bond photocatalytic oxidation

Shuai Ma; Qiunan Liu; Jingwang Cui; Caihui Rao; Mengze Jia; Xinrong Yao; Jie Zhang

doi:10.1016/j.jcis.2022.12.047

Pyridinium-derived polycationic covalent organic polymers for aromatic C-H bond photocatalytic oxidation

J Colloid Interface Sci. 2023 Mar 15:634:431-439. doi: 10.1016/j.jcis.2022.12.047. Epub 2022 Dec 12.

Authors

Shuai Ma¹, Qiunan Liu², Jingwang Cui¹, Caihui Rao¹, Mengze Jia¹, Xinrong Yao¹, Jie Zhang³

Affiliations

¹ MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, PR China.
² Department of Nanocharacterization for Nanostructures and Functions, The Institute of Scientific and Industrial Research (ISIR-SANKEN), Osaka University, Osaka 565-0871, Japan.
³ MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, PR China. Electronic address: zhangjie68@bit.edu.cn.

PMID: 36542972
DOI: 10.1016/j.jcis.2022.12.047

Abstract

Using oxygen in the air as the sole oxidant to oxidize hydrocarbons into high value-added compounds is a highly promising synthesis strategy with economic advantages. However, the oxidation of hydrocarbons with molecular oxygen under mild conditions is challenging due to the large C-H bond energy in hydrocarbons. Herein, a metal-free two-dimensional covalent organic polymers (COP) functionalized by photoactive pyridinium units has been developed for heterogeneous photocatalytic oxidation of hydrocarbons. This is the first kind of COPs material that can achieve photocatalytic oxidation of hydrocarbons without any additives or stoichiometric oxidants except for the oxygen in the air.

Keywords: Covalent organic polymers; C–H bond activation; Photocatalysis; Pyridinium.