Chiral hole: The first chiral microporous germanium antimony sulfide with 3D helical channels was constructed by the unprecedented combination of {GeS4} tetrahedra and ψ-{SbS4} trigonal bipyramids. The dimethylammonium cations present in the structure are easily exchanged with alkali metal cations present in aqueous solution. The title compound has high ion-exchange capacity and high selectivity for Cs+ ions.
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Feng et al. (2008) studied this question.
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