Permanent microporosity and enantioselective sorption in a chiral open framework |
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Authors: | Bradshaw Darren Prior Timothy J Cussen Edmund J Claridge John B Rosseinsky Matthew J |
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Institution: | Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom. |
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Abstract: | A homochiral microporous material is presented. The phase has 47% permanently porous void volume and is shown to have >1 nm diameter pores with three-dimensional channels using probe molecule sorption. Enantioselective guest sorption is strongly dependent on guest size. The homochiral microporous phase was identified by reactive selection from a first-generation chiral but nonporous framework. Chiral permanent porosity is established by directional noncovalent interactions between framework-forming and nonframework forming components of the stable second-generation material, which become stronger upon loss of the guests from the pore system. |
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