Two Stable Zn-Cluster-Based Metal–Organic
Frameworks with Breathing Behavior: Synthesis, Structure, and Adsorption
Properties
Posted on 2018-12-07 - 21:44
Two
stable Zn-cluster-based MOFs, [Zn9(btz)12(atdbc)3(DMF)]·3DMF·12H2O (compound 1, Hbtz = 1H-benzotriazole, H2atdbc =
4,4′-(4-amino-1,2,4-triazol-3,5-diyl)dibenzoic acid, DMF = N,N-dimethylformamide) and [Zn4(btz)6(bcpt)]·3DMF (compound 2, H2bcpt = 3,5-bis(4′-carboxy-phenyl)-1,2,4-triazole),
have been successfully constructed by adopting the mixed ligands approach.
Both the compounds exhibit high chemical stability under aqueous solution
and common organic solvents. Especially, compounds 1 and 2 can be stable in pH = 2 and pH = 12 solutions. Meanwhile,
compound 1 exhibits good ability to selectively separate
CO2 from CH4. CO2 over CH4 selectivity is 5.2 (0.5/0.5) and 5.7 (0.05/0.95) at 298 K under
1 bar, respectively, which may be used for the separation of gases
in industrial applications. Moreover, compound 1 displays
breathing behavior for small-molecule gases (N2, CO2, C2H6, and C3H8), and compound 2 only exhibits the same phenomenon
for CO2 adsorption because of its ultramicroporous channels.
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Kan, Liang; Cai, Jun; Jin, Zhuwei; Li, Guanghua; Liu, Yunling; Xu, Liren (2018). Two Stable Zn-Cluster-Based Metal–Organic
Frameworks with Breathing Behavior: Synthesis, Structure, and Adsorption
Properties. ACS Publications. Collection. https://doi.org/10.1021/acs.inorgchem.8b02507
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AUTHORS (6)
LK
Liang Kan
JC
Jun Cai
ZJ
Zhuwei Jin
GL
Guanghua Li
YL
Yunling Liu
LX
Liren Xu