Anionic Gallium-Based Metal-Organic Framework and Its Sorption and Ion-Exchange Properties
- Anionic Gallium-Based Metal-Organic Framework and Its Sorption and Ion-Exchange Properties
- D. Banerjee; 김선진; H. Wu; W. Xu; L. A. borkowski; J. Li; J. B. Parise
- MOF; Gallium; Ion-Exchange; H2 isotherm
- Issue Date
- Inorganic chemistry
- VOL 50, NO 1, 208-212
- A gallium-based metal-organic framework Ga6(C9H3O6)8 3 (C2H8N)6(C3H7NO)3(H2O)26 [1, Ga6(1,3,5-BTC)8 3 6DMA 3
3DMF 3 26H2O], GaMOF-1; BTC = benzenetricarboxylate/trimesic acid and DMA = dimethylamine], with space group
I43d, a = 19.611(1) Å, and V = 7953.4(6) Å3, was synthesized using solvothermal techniques and characterized by
synchrotron-based X-ray microcrystal diffraction. Compound 1 contains isolated gallium tetrahedra connected by the
organic linker (BTC) forming a 3,4-connected anionic porous network. Disordered positively charged ions and solvent
molecules are present in the pore, compensating for the negative charge of the framework. These positively charged
molecules could be exchanged with alkali-metal ions, as is evident by an ICP-MS study. The H2 storage capacity of the
parent framework is moderate with a H2 storage capacity of ~0.5 wt % at 77 K and 1 atm.
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