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A new type of host compound consisting of α-zirconium phosphate and an animated cyclodextrin

Abstract

Pillaring of layered compounds by polynuclear hydroxy metal cations or bulky organic species has been applied to the formation of microporous networks analogous to zeolites1,2. Similar types of compound may be obtained by the intercalation of host molecules such as cyclodextrins in layered parent hosts. Our previous work3,4 first demonstrated such a combined host compound, in which molecules of mono-(6-β-aminoethylamino-6-deoxy)-β-cyclodex-trin (CDen) are intercalated as a bi-layer with their cavity axes perpendicular to the silicate layers of Cu(II)-montmorillonite. We have now prepared a complex of layered α-zirconium phosphate with CDen, in which the CDen molecules are arranged as a bi-layer but with their cavity axes parallel to the inorganic layers. The dextrin moiety of the present complex also appears to possess a zeolitic character.

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Kijima, T., Matsui, Y. A new type of host compound consisting of α-zirconium phosphate and an animated cyclodextrin. Nature 322, 533–534 (1986). https://doi.org/10.1038/322533a0

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