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DOI: 10.1055/s-0040-1707963
Synthesis, Photophysical and Supramolecular Properties of a π-Conjugated Molecular Crown Containing a Pentagonal Unit: A Model Compound for Fullerene C240
Autor*innen
This work was financially supported by the National Natural Science Foundation of China (21473170, 51772285) and the National Key Research and Development Program of China (2017YFA0402800).
Publikationsverlauf
Received: 23. Januar 2020
Accepted after revision: 14. April 2020
Publikationsdatum:
20. Mai 2020 (online)

Abstract
The total synthesis of carbon onions is a significant challenge in the fields of materials science and organic chemistry. To date, the synthesis of even a fragment of fullerene C240 and its smallest carbon onion C60@C240 remains poorly explored. Herein, we demonstrate a bottom-up strategy to produce a novel π-extended molecular crown-shaped molecule (MC3) containing curved pentagonal and hexagonal units. This molecular crown represents a curved model compound for fullerene C240 and is fully characterized by NMR, mass spectrometry, UV-vis absorption, and from its emission spectra. Its supramolecular host–guest interaction with fullerene C60 is also investigated. MC3 and C60@MC3 can potentially be employed as seeds or templates for the bottom-up synthesis of fullerene C240 and the carbon onion C60@C240, respectively.
Supporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/s-0040-1707963.
- Supporting Information (PDF) (opens in new window)
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