Porous organic cages
Top Cited Papers
- 25 October 2009
- journal article
- research article
- Published by Springer Science and Business Media LLC in Nature Materials
- Vol. 8 (12), 973-978
- https://doi.org/10.1038/nmat2545
Abstract
Porous materials are important in a wide range of applications including molecular separations and catalysis. We demonstrate that covalently bonded organic cages can assemble into crystalline microporous materials. The porosity is prefabricated and intrinsic to the molecular cage structure, as opposed to being formed by non-covalent self-assembly of non-porous sub-units. The three-dimensional connectivity between the cage windows is controlled by varying the chemical functionality such that either non-porous or permanently porous assemblies can be produced. Surface areas and gas uptakes for the latter exceed comparable molecular solids. One of the cages can be converted by recrystallization to produce either porous or non-porous polymorphs with apparent Brunauer–Emmett–Teller surface areas of 550 and 23 m2 g−1, respectively. These results suggest design principles for responsive porous organic solids and for the modular construction of extended materials from prefabricated molecular pores.Keywords
This publication has 40 references indexed in Scilit:
- Amorphous Molecular Organic Solids for Gas AdsorptionAngewandte Chemie-International Edition, 2009
- Porous, Covalent Triazine‐Based Frameworks Prepared by Ionothermal SynthesisAngewandte Chemie-International Edition, 2008
- Gas-induced transformation and expansion of a non-porous organic solidNature Materials, 2008
- Porous LiquidsChemistry – A European Journal, 2007
- Packing, tiling, and covering with tetrahedraProceedings of the National Academy of Sciences of the United States of America, 2006
- Crystal porosity and the burden of proofChemical Communications, 2006
- Polymers of intrinsic microporosity (PIMs): robust, solution-processable, organic nanoporous materialsChemical Communications, 2003
- Guest Transport in a Nonporous Organic Solid via Dynamic van der Waals CooperativityScience, 2002
- α- and β-Bis(1,1,1-trifluoro-5,5-dimethyl-5-methoxyacetylacetonato)copper(II): Transforming the Dense Polymorph into a Versatile New Microporous FrameworkJournal of the American Chemical Society, 1999
- Nanoporous and mesoporous organic structures: new openings for materials researchChemical Society Reviews, 1999