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• W4387059691 abstract "Abstract In the energy landscape of coordination‐driven self‐assembly processes, the isolation of kinetically formed supramolecular cages has long been identified as a challenging task. This study reports a reliable strategy for the selective isolation of kinetically or thermodynamically preferred stable coordination cages, whose formation depends on the degree of steric protection offered by the exterior side chains. The combination of Pd II ions with arc‐shaped 2,2′‐bianthryl‐based ligands that contain different numbers of methoxyethoxy side chains led to the quantitative formation of both kinetically favorable monomeric M 2 L 4 cages and thermodynamically favorable dimeric (M 2 L 4 ) 2 interlocked cages. These assemblies were structurally fully characterized via NMR spectroscopy, mass spectrometry, and single‐crystal X‐ray diffraction analysis. Although the monomeric cages with fewer exterior side chains can reassemble into interlocked cages, the cages with more exterior substituents remain monomeric cages under similar conditions. A computational study revealed that this different behavior is mainly governed by the destabilization of the interlocking assemblies due to the steric repulsion among the side chains on the overcrowded exterior. Furthermore, the kinetically stabilized monomeric M 2 L 4 cages exhibit permanent host abilities toward sulfonate guests, while the cages with lower steric protection undergo dimerization accompanied by guest release." @default.
• W4387059691 created "2023-09-27" @default.
• W4387059691 creator A5023670863 @default.
• W4387059691 creator A5061930920 @default.
• W4387059691 creator A5062534701 @default.
• W4387059691 creator A5067419282 @default.
• W4387059691 date "2023-09-26" @default.
• W4387059691 modified "2023-10-07" @default.
• W4387059691 title "Controlling the Assembly of Pd^II/Bianthryl‐Based Monomeric and Dimeric Interlocked Cages by Steric Effects" @default.
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