Concentration‐Dependent Self‐Assembly of an Unusually Large Hexameric Hydrogen‐Bonded Molecular Cage
نویسندگان
چکیده
The sizes of available self-assembled hydrogen-bond-based supramolecular capsules and cages are rather limited. largest systems have volumes approximately 1400–2300 Å3. Herein, we report a large, hexameric cage based on intermolecular amide–amide dimerization. unusual structure with openings, reminiscent covalently linked cages, is held together by 24 hydrogen bonds. With diameter 2.3 nm cavity volume ∼2800 Å3, the assembly larger than any previously known capsule/cage relying exclusively self-assembly process in chlorinated, organic solvents was found to be strongly concentration dependent, monomeric form prevailing at low concentrations. Additionally, formation host–guest complexes fullerenes (C60 C70) observed.
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ژورنال
عنوان ژورنال: Chemistry: A European Journal
سال: 2021
ISSN: ['0947-6539', '1521-3765']
DOI: https://doi.org/10.1002/chem.202005046