Publication: Supramolecular Spheres Self-Assembled from Conical Dendrons Are Chiral
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Issued Date
2019-04-17
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ISSN
15205126
00027863
00027863
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2-s2.0-85064567072
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of the American Chemical Society. Vol.141, No.15 (2019), 6162-6166
Suggested Citation
Daniela A. Wilson, Katerina A. Andreopoulou, Mihai Peterca, Pawaret Leowanawat, Dipankar Sahoo, Benjamin E. Partridge, Qi Xiao, Ning Huang, Paul A. Heiney, Virgil Percec Supramolecular Spheres Self-Assembled from Conical Dendrons Are Chiral. Journal of the American Chemical Society. Vol.141, No.15 (2019), 6162-6166. doi:10.1021/jacs.9b02206 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/50200
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Title
Supramolecular Spheres Self-Assembled from Conical Dendrons Are Chiral
Abstract
© 2019 American Chemical Society. Frank-Kasper phases and liquid quasicrystals self-organize from supramolecular spheres of dendrimers, block copolymers, surfactants and other self-assembling molecules. These spheres are expected to be achiral due to their isotropic shape. Nevertheless, supramolecular spheres from short helical stacks of crown-like dendrimers self-organize a Pm3n cubic (Frank-Kasper A15) phase which exhibits chirality on the macroscopic scale. However, the chirality of classic isotropic supramolecular micellar-like spheres, generated from conical dendrons, is unknown. Here we report a library of second and third generation biphenylpropyl dendrons with chiral groups at their apex that produces single-handed chiral supramolecular spheres. Up to 480 conical dendrons self-assemble to form micellar-like spheres, with a molar mass of up to 1.1 × 106 g/mol, that self-organize into a Pm3n phase with chirality detectable on the macroscopic scale. This demonstration of chirality in micellar-like spheres of a Frank-Kasper phase raises the fundamental question whether micellar-like spheres forming 3D phases generated from other soft matter such as block copolymers, surfactants, and other molecules are chiral.