Synthesis and structural characterisation of lower rim halogenated pyrogallol[4]arenes: bi-layers and hexameric nano-capsules.
نویسندگان
چکیده
Two lower rim halogenated pyrogallol[4]arenes have been synthesised and structurally characterised as either bi-layer or hexameric nano-capsule motifs depending upon chain length and functionalisation.
منابع مشابه
Self-recognition, structure, stability, and guest affinity of pyrogallol[4]arene and resorcin[4]arene capsules in solution.
In the present study, we used diffusion NMR to probe the structures and characteristics of the products obtained from the self-assembly of resorcin[4]arenes 1a and 1b and pyrogallol[4]arenes 2a and 2b in CDCl(3) solutions. It was found that all four molecules self-assemble into hexameric capsules. The hexameric capsules of pyrogallol[4]arenes 2a and 2b were found to be more stable than the caps...
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Hydrogen-bond molecular capsules have attracted much interest in the last decade. In the present paper, we wish to describe new insights obtained from diffusion NMR when studying the self-assembly of resorcin[4]arenes (2), pyrogallol[4]arenes (3) and octahydroxypyridine[4]arenes (4) in solution. These diffusion NMR studies demonstrate that compounds 2 and 3 self-assemble spontaneously into hexa...
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Pyrogallol[4]arenes were monofunctionalized with fluorophores and fluorescence resonance energy transfer (FRET) was used to follow the self-assembly and exchange of the hexameric capsules at micromolar concentrations.
متن کاملOrganization of the interior of molecular capsules by hydrogen bonding.
The enclosure of functional entities within a protective boundary is an essential feature of biological systems. On a molecular scale, free-standing capsules with an internal volume sufficiently large to house molecular species have been synthesized and studied for more than a decade. These capsules have been prepared by either covalent synthesis or self-assembly, and the internal volumes have ...
متن کاملExploring the limits of encapsulation within hexameric pyrogallol[4]arene nano-capsules.
Large fluorescent molecules have been encapsulated in pyrogallol[4]arene nano-capsules, thus exploring the limits of molecular encapsulation; the orientation of these probe molecules within these nano-capsules has been examined with additional computational approaches in one case.
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ورودعنوان ژورنال:
- Chemical communications
دوره 36 شماره
صفحات -
تاریخ انتشار 2006