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Inorg Chem. 2018 Feb 5;57(3):1040-1047. doi: 10.1021/acs.inorgchem.7b02391. Epub 2018 Jan 5.

Defect Engineering into Metal-Organic Frameworks for the Rapid and Sequential Installation of Functionalities.

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Department of Chemistry and BK21Plus Research Team, Chungbuk National University , Cheongju, 28644, Republic of Korea.
School of Basic Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST) , Daegu, 42988, Republic of Korea.
Department of Chemistry Education, Chungbuk National University , Cheongju, 28644, Republic of Korea.


Postsynthetic treatments are well-known and important functionalization tools of metal-organic frameworks (MOFs). Herein, we have developed a practical and rapid postsynthetic ligand exchange (PSE) strategy using a defect-controlled MOF. An increase in the number of defects amounts to MOFs with enhanced rates of ligand exchange in a shorter time frame. An almost quantitative exchange was achieved by using the most defective MOFs. This PSE strategy is a straightforward method to introduce a functionality into MOFs including bulky or catalytically relevant moieties. Furthermore, some mechanistic insights into PSE were revealed, allowing for a sequential ligand exchange and the development of multifunctional MOFs with controlled ligand ratios.

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