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Authors
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Xia, B.; Komber, H.; Elbert, S.; Mastalerz, M.; Liu, J.
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Title
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A rigid phenyl-based covalently interlocked macrocycle with inherent porosity
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Date
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17.02.2026
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Number
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0
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Abstract
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The precise construction of three-dimensional (3D) carbon networks consisting solely of sp2 hybridized atoms has long been pursued in carbon nanoscience. Herein, we report the bottom-up synthesis of a covalently interlocked macrocycle ([2]CIM) featuring a molecular core of 31 benzene units. X-ray crystallography unambiguously confirmed the covalently interlocked structure of [2]CIM, revealing a rigid 3D architecture with inherent porosity. Its conformational rigidity and solid-state packing enable it to be a promising molecular porous material, exhibiting a specific surface area (SABET) of 507 m2 g−1. Gas absorption studies demonstrated the preferential adsorption of ethane (C2H6) over ethene (C2H4) by the phenyl-based covalently interlocked macrocycle. [2]CIM exhibits a unique gas separation performance among discrete phenyl-based porous macrocycles.
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Publisher
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Royal Society of Chemistry
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Wikidata
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Citation
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Materials Chemistry Frontiers 10 (2026) 1779-1788
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DOI
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https://doi.org/10.1039/D6QM00038J
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