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  A supramolecular approach for the facile solubilization and separation of covalently functionalized single-walled carbon nanotubes

Bosch, S., Zeininger, L., Hauke, F., & Hirsch, A. (2014). A supramolecular approach for the facile solubilization and separation of covalently functionalized single-walled carbon nanotubes. Chemistry – A European Journal, 20(9), 2537-2541. doi:10.1002/chem.201303506.

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Bosch, S., Autor
Zeininger, Lukas1, Autor           
Hauke, F., Autor
Hirsch, A., Autor
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1External Organizations, ou_persistent22              

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 Zusammenfassung: Through a combination of an electronic-type selective diazonium-based attachment of a Hamilton receptor unit onto the carbon nanotube framework and a supramolecular recognition approach of a cyanuric acid derivative, we herein introduce a highly promising strategy for the tuning of carbon nanotube solubility and, directly related to that, a solution-based easy and straightforward separation of covalently functionalized carbon nanotube derivatives with respect to their unfunctionalized counterparts. The supramolecular complexation of the cyanuric acid derivative provides the driving force for the dramatically increased dispersibility and for the long-time stability of the individualized single-walled carbon nanotube derivatives in chloroform. The selective covalent functionalization of metallic carbon nanotubes can easily be analyzed with the aid of scanning Raman microscopy techniques. The functional derivatives have furthermore been characterized by UV/Vis-NIR and fluorescence spectroscopy as well as by mass spectrometric coupled thermogravimetric analysis. The investigation of the supramolecular complexation is based on an in-depth UV/Vis-NIR analysis and atomic force microscopy investigations. Great walls: A highly promising strategy for the efficient separation of functionalized single-walled carbon nanotubes (SWCNTs) from their respective unfunctionalized counterparts is presented. Hamilton receptor units covalently attached to the SWCNT sidewalls provide the basis for this simple and scalable solution-based separation (see picture). Copyright © 2014 WILEY-VCH Verlag GmbH Co. KGaA, Weinheim.

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 Datum: 2014
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1002/chem.201303506
BibTex Citekey: Bosch20142537
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Titel: Chemistry – A European Journal
  Andere : Chem. – Eur. J.
  Andere : Chem. Eur. J.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 20 (9) Artikelnummer: - Start- / Endseite: 2537 - 2541 Identifikator: ISSN: 0947-6539