Synthesis and Hydrogen Sorption Properties of Carborane Based Metal−Organic Framework Materials

The synthesis and hydrogen uptake properties of metal−organic framework (MOFs) materials based on carboranes have been investigated. These are the first MOFs to make use of boron-rich components as building blocksspecifically, the deprotonated form of 1,12-dihydroxycarbonyl-1,12-dicarba-closo-dodec...

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Bibliographic Details
Published in:Journal of the American Chemical Society 2007-10, Vol.129 (42), p.12680-12681
Main Authors: Farha, Omar K, Spokoyny, Alexander M, Mulfort, Karen L, Hawthorne, M. Frederick, Mirkin, Chad A, Hupp, Joseph T
Format: Article
Language:English
Subjects:
Adsorption
Boranes - chemistry
Carbon - chemistry
Chemistry, Organic - methods
Crystallography, X-Ray - methods
Hydrogen - chemistry
Hydrogen Bonding
Polymers - chemistry
Pressure
Temperature
Thermodynamics
X-Ray Diffraction
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Summary:The synthesis and hydrogen uptake properties of metal−organic framework (MOFs) materials based on carboranes have been investigated. These are the first MOFs to make use of boron-rich components as building blocksspecifically, the deprotonated form of 1,12-dihydroxycarbonyl-1,12-dicarba-closo-dodecaborane. In evacuated form the initially obtained compound, featuring zinc-coordinated solvent molecules, displays modest H2 uptake at 77 K and 1 atm. Upon removal of the coordinated solvent, however, the uptake triples (2.1 wt. %), the heat of adsorption substantially increases, and the structure adjusts such that the pore size decreases.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja076167a