CD-MOF: A Versatile Separation Medium

Journal of the American Chemical Society
Karel J HartliebJ Fraser Stoddart

Abstract

Porous metal-organic frameworks (MOFs) have been studied in the context of a wide variety of applications, particularly in relation to molecular storage and separation sciences. Recently, we reported a green, renewable framework material composed of γ-cyclodextrin (γ-CD) and alkali metal salts-namely, CD-MOF. This porous material has been shown to facilitate the separation of mixtures of alkylaromatic compounds, including the BTEX mixture (benzene, toluene, ethylbenzene, and the regioisomers of xylene), into their pure components, in both the liquid and gas phases, in an energy-efficient manner which could have implications for the petrochemical industry. Here, we report the ability of CD-MOF to separate a wide variety of mixtures, including ethylbenzene from styrene, haloaromatics, terpinenes, pinenes and other chiral compounds. CD-MOF retains saturated compounds to a greater extent than their unsaturated analogues. Also, the location of a double bond within a molecule influences its retention within the extended framework, as revealed in the case of the structural isomers of pinene and terpinine, where the isomers with exocyclic double bonds are more highly retained than those with endocyclic double bonds. The ability of CD-M...Continue Reading

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Citations

May 18, 2016·The Journal of Organic Chemistry·Krishnagopal Maiti, Narayanaswamy Jayaraman
Jul 28, 2016·Journal of the American Chemical Society·Wen-Ying ZhangGuo-Xin Jin
Aug 16, 2016·Journal of the American Chemical Society·Zhichang LiuJ Fraser Stoddart
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Mar 10, 2017·Journal of the American Chemical Society·José Navarro-SánchezCarlos Martí-Gastaldo
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Sep 29, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·T W TsengK L Lu

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