Self-assembled poly-catenanes from supramolecular toroidal building blocks

Nature
Sougata DattaShiki Yagai

Abstract

Mechanical interlocking of molecules (catenation) is a nontrivial challenge in modern synthetic chemistry and materials science1,2. One strategy to achieve catenation is the design of pre-annular molecules that are capable of both efficient cyclization and of pre-organizing another precursor to engage in subsequent interlocking3-9. This task is particularly difficult when the annular target is composed of a large ensemble of molecules, that is, when it is a supramolecular assembly. However, the construction of such unprecedented assemblies would enable the visualization of nontrivial nanotopologies through microscopy techniques, which would not only satisfy academic curiosity but also pave the way to the development of materials with nanotopology-derived properties. Here we report the synthesis of such a nanotopology using fibrous supramolecular assemblies with intrinsic curvature. Using a solvent-mixing strategy, we kinetically organized a molecule that can elongate into toroids with a radius of about 13 nanometres. Atomic force microscopy on the resulting nanoscale toroids revealed a high percentage of catenation, which is sufficient to yield 'nanolympiadane'10, a nanoscale catenane composed of five interlocked toroids. Spect...Continue Reading

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Citations

Nov 22, 2020·Nature Communications·Guanghui OuyangMinghua Liu
Mar 24, 2021·Journal of the American Chemical Society·Takuya FukushimaShiki Yagai
Apr 4, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Katsuhiko Ariga
Apr 30, 2021·Journal of the American Chemical Society·Jonas MaternGustavo Fernández
May 6, 2021·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Katsuhiko Ariga
May 6, 2021·Chemical Communications : Chem Comm·Kenta TamakiShiki Yagai
May 7, 2021·Advanced Materials·Riccardo AlessandriSiewert J Marrink
May 11, 2021·Organic & Biomolecular Chemistry·Masaya YoshidaTakeharu Haino
Jun 3, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Shengda LiuJunqiu Liu
Jul 3, 2021·Accounts of Chemical Research·Mo Sun, Myongsoo Lee
Jul 27, 2021·Journal of the American Chemical Society·Souvik SarkarSubi J George
Jul 27, 2021·Journal of the American Chemical Society·Fenghua ZhangZhijie Yang
Aug 7, 2021·Organic Chemistry Frontiers : an International Journal of Organic Chemistry·Nils BäumerGustavo Fernández
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Guoping ChenKatsuhiko Ariga
Nov 12, 2020·Journal of the American Chemical Society·Mathijs F J MabesooneE W Meijer
Aug 28, 2021·Nanomaterials·Subrata MajiKatsuhiko Ariga
Oct 13, 2021·Nature Chemistry·Mario SamperiDavid B Amabilino
Oct 16, 2021·Nature Materials·Zhen ChenTakuzo Aida
Oct 27, 2021·The Journal of Physical Chemistry. B·Youngbeom JoSeokmin Shin
Sep 22, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Enzo Orlandini, Cristian Micheletti

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Methods Mentioned

BETA
atomic force microscopy
X-ray
AFM
SANS
membrane filtration

Software Mentioned

SAS
MCH

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