Metal organic framework materials

Thomas KM. Adsorption and desorption of hydrogen on metal-organic framework materials for storage applications comparison with other nanoporous materials, Dalton Trans 2009, 2009,1487-1505. 

Fig. 11 Crystal structure of a metal-organic framework material Zn2(fina)2(bipy) prepared by mechanochemical synthesis, with the structure determined directly from powder XRD data. The structure is viewed (a) along the c-axis and (b) along the b-axis. The two (identical) interpenetrated frameworks are indicated by yellow and purple shading. For comparison, (c) and (d) show the corresponding views of the stmcture of a DMF solvate material Zn2(fma)2(bipy)(DMF)o.5 prepared by a solvothermal route. Although there is some similarity between these structures, there are nevertheless important stmctural differences between them...

Even though crystalline microporous materials include those with pore size between 10 and 20 A (called extra-large pore materials), few of them have a pore size within this range. This limits the applications of microporous materials to small molecules. There has always been a desire to increase the pore size of a crystalline material to more than 10 A while maintaining adequate thermal or hydrothermal stability required for various applications. Recent advances in chalcogenide and metal-organic framework materials have shown much promise for the preparation of extra-large pore materials. 

S.-H. Cho, B. Ma, S. T. Nguyen, J. T. Hupp, T. E. Albrecht-Smith, A metal-organic framework material that functions as an enantioselective catalyst for olefin epoxidation, Chem. Commun. (2006) 2563. 

Recent studies have shown how low-temperature X-ray and neutron diffraction studies can be used to identify the location and population of gas molecules in metal-organic framework materials, providing insight into an important area of application for materials designed by a crystal engineering approach [21]. 

Metal-organic framework materials for hydrogen storage 289... 

The focus of this chapter is porous (aluniino)silicates, with an emphasis on zeolitic materials. Porous phosphate materials such as aluminophosphates and metalloalumi-nophosphates are quite interesting in their own right but beyond the scope of this chapter. There are several excellent overviews of the synthesis, characterization, and application of these materials elsewhere (12, 13). This chapter also will not describe MOFs, or metal-organic framework materials. 

Hydrogen, Methane and Carbon Dioxide Adsorption in Metal-Organic Framework Materials... 

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