Chelating Metal Ions in a Metal-Organic Framework for Constructing a Biomimetic Catalyst Through Post-modification  

作　　者：PANG Kuan XUE Huan LIU Haixiong SUN Jing LIU Tianfu 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,350002,P.R.China [2]School of Electronic Information and Electrical Engineering,Shangluo University,Shangluo,726000,P.R.China [3]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou,350108,P.R.China [4]University of Chinese Academy of Sciences,Beijing,100049,P.R.China

出　　处：《Chemical Research in Chinese Universities》2022年第6期1542-1546,共5页高等学校化学研究（英文版）

基　　金：supported by the National Key Research and Development Program of China (No.2018YFA0704502);the National Natural Science Foundation of China (No.22033008);the Foundation of Director of Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China (Nos.2021ZZ103,2021ZR105).

摘　　要：Crystal engineering,as a burgeoning technology,has been widely used to construct metalloporphyrins biomimetic catalysts.Herein,a bimetallic metal-organic framework(MOF)was constructed by 4-(4-carboxyphenyl)-1,2,4-triazole ligand,Co2+and Zr4+metal ions by solvothermal reaction(named PFC-88).A N,N-chelation site was found between the two adjacent ligands in PFC-88,consequently a porphyrin-like structure was obtained through chelating Fe^(3+) in this site by post-modification,named PFC-88-Fe.The result of a single crystal X-ray technology verified that Fe ions were successfully metalated in the N,N-chelation site of PFC-88,which is assisted by the X-ray absorption near-edge structure(XANES)spectra.An o-phenylenediamine oxidation reaction was applied to assessing the catalytic activity of PFC-88-Fe,in which the absorbance increases of phenazine-2,3-diamine atλ=418 nm were recorded by absorption spectroscopy in kinetic mode,exhibiting the application potential as a biomimetic catalyst.

关 键 词：Metal-organic framework(MOF) Bimetallic MOF Crystal structure METALATION 

分 类 号：O62[理学—有机化学]