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| Type |
Poster Presentation |
| Area |
Organic Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
ORGN.P-483 |
| Subject |
Installation of Functionalized Ligands to Metal-Organic Frameworks by Ligand Exchange |
| Authors |
Seongwoo Kim, Min Kim*
Department of Chemistry, Chungbuk National University, Korea
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| Abstract |
The functional group could be installed into MOFs (metal-organic frameworks) through two different strategies. First, the functionalized ligand is prepared, and then installed through solvothermal synthesis. The second method for MOF functionalization is the postsynthetic treatment. At 2012, we discovered that the ligand in MOF strut could be replaced with external ligand in the olution.1 And this postsynthetic process called as PSE (postsynthetic ligand exchange). It strongly suggested that MOFs are not inert solid material, and they are on the some equilibrium between solid and solution.
Recently, structural defects were revealed in MOF crystal structures have many interests in coordination material research fields. Since MOFs are constructed by repeating coordination bonds between metal ions (or clusters) and organic ligands, the disappearance of metal clusters or organic linker molecules generate structural defects on the frameworks.2 The structural defects could give physically unstable frameworks, however, at the same time, allow more accessible channel or porosity to the guest molecules. Very recently, the defect engineering in MOFs pores are receiving much attention from this point of view.
In this presentation, the practical PSE process through defective MOF will be discussed. The existence of defect and increase of defect amount in the framework could accelerate the diffusion of functionalized molecule and produce the installation of functional molecules. The scope of functionalizations and the detail kinetics along with application will be presented.3
References
1. Zhou, H.-C.; Long, J.-R.; Yaghi, O.-M. Chem. Rev. 2012, 112, 673.
2. Fang, Z.; Bueken, B.; De Vos, D.-E.; Fischer, R.-A. Angew. Chem. Int. Ed. 2015, 54, 7234.
3. Park, H.; Kim, S.; Jung, B.; Park, M. H.; Kim, Y.; Kim, M. Inorg. Chem. 2018, 57, 1040.
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| E-mail |
swkim8983@naver.com |
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121st General Meeting of the KCS