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GAS CHROMATOGRAPHY

Porous Chiral Metal-Organic Framework InH(D-C10H14O4)2 with Anionic-Type Diamond Network for High-Resolution Gas Chromatographic Enantioseparations

, , &
Pages 753-763 | Received 27 Aug 2012, Accepted 23 Sep 2012, Published online: 01 Mar 2013
 

Abstract

Metal-organic frameworks have large surface area, highly ordered pore structure and good chemical stability. In this study, a porous chiral metal-organic framework InH(D-C10H14O4)2(D-C10H14O4 = D-(+)-camphoric acid) with a left-handed helical channel assembled from D-(+)-camphoric acid was used as chiral stationary phase in GC. InH(D-C10H14O4)2-coated open tubular columns with different inner diameters or lengths were prepared by a dynamic coating method for high-resolution GC separation of various types of organic compounds, including racemates, isomers, alkanes, alcohols, and Grob's test mixture. Their column efficiency, polarity, and selectivity were studied. The experimental results show that the stationary phase has excellent selectivity and also possesses good recognition ability toward these organic compounds, especially for chiral compounds.

Acknowledgments

This work was supported by the National Natural Science Foundation (No. 21075109, No. 21127012) and the National Basic Research Program (No. 2011CB612312) of China.

Notes

x′, benzene; y′, 1-butanol; z′, 2-pentanone; u′, nitropropane; s′, pyridine.

a trifluoroacetyl derivate.

b Trifluoroacetyl isopropyl ester derivate.

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