Abstract:A supramolecular complex, formed by encapsulation of C60 fullerene in a molecular container built from two resorcin[4]arene rims zipped together by peptidic arms hydrogen bonded into a cylindrical β-sheet, was studied by X-ray crystallography, solid-state and solution NMR, EPR spectroscopy and differential scanning calorimetry (DSC). The crystal structure, determined at 100 K, reveals that the complex occupies 422 site symmetry, which is compatible with the molecular symmetry of the container but not of the fu… Show more
“…84 The symmetry breaking by encapsulation in the chiral cavity is noteworthy because there are no directional or short interactions between the host and guest, and the rotation of fullerene entrapped in the cavity is fast, even in the solid state (as demonstrated by combined crystallographic and solid-state NMR studies). 86 The possibility of acylhydrazone–peptide capsules to encapsulate fullerenes was exploited to template the formation of similar capsules in polar solvents 87 and water. 88 Cavitands 23 and 24 containing polar amino acids (Gln and His) are soluble in water, DMSO, or methanol, but do not self-assemble in these competitive solvents, as proved by following their ordering by electronic circular dichroism (ECD).…”
Section: Covalent and Non-covalent Capsulesmentioning
Evolution of supramolecular vessels by combination of various scaffolds and natural building blocks is reviewed. These nanocontainers are crafted by covalent chemistry or self-assembly for applications in sensing, transport, and catalysis.
“…84 The symmetry breaking by encapsulation in the chiral cavity is noteworthy because there are no directional or short interactions between the host and guest, and the rotation of fullerene entrapped in the cavity is fast, even in the solid state (as demonstrated by combined crystallographic and solid-state NMR studies). 86 The possibility of acylhydrazone–peptide capsules to encapsulate fullerenes was exploited to template the formation of similar capsules in polar solvents 87 and water. 88 Cavitands 23 and 24 containing polar amino acids (Gln and His) are soluble in water, DMSO, or methanol, but do not self-assemble in these competitive solvents, as proved by following their ordering by electronic circular dichroism (ECD).…”
Section: Covalent and Non-covalent Capsulesmentioning
Evolution of supramolecular vessels by combination of various scaffolds and natural building blocks is reviewed. These nanocontainers are crafted by covalent chemistry or self-assembly for applications in sensing, transport, and catalysis.
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