1. Improving the Stability and Gas Adsorption Performance of Acylamide Group Functionalized Zinc Metal–Organic Frameworks through Coordination Group Optimization
- Author
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Xiao-Ting Liu, Rui Feng, Ping Zhang, Yan-Yuan Jia, Shi-Yu Zhang, Xian-He Bu, Ya-Bing He, and Ying-Hui Zhang
- Subjects
Materials science ,010405 organic chemistry ,Ligand ,Inorganic chemistry ,General Chemistry ,Pyrazole ,010402 general chemistry ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,chemistry.chemical_compound ,Adsorption ,Chemical engineering ,chemistry ,Group (periodic table) ,Zinc metal ,Moiety ,General Materials Science ,Chemical stability ,Porosity - Abstract
In order to elucidate the effect of the structure on stability and gas adsorption performance, three porous Zn(II) metal–organic frameworks, NKU-106, NKU-107, and NKU-108, have been constructed. NKU-106 and NKU-107 assembled from acylamide functionalized tetracarboxylate ligand exhibit low stability and thereby poor gas adsorption ability. However, when one isophthalate moiety of the tetracarboxylate ligand is replaced with a pyrazole group, and the resulting NKU-108 shows improved thermal and chemical stability as well as good adsorption capacities with respect to CO2 and C2 hydrocarbons. This result demonstrates that coordination group optimization is an effective strategy to improve the stability and gas adsorption properties of metal–organic frameworks (MOFs) and thus provides very valuable information for future design and synthesis of porous MOFs for practical application.
- Published
- 2017
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