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Supramolecular discrimination of carbon nanotubes according to their helicity. | LitMetric

Supramolecular discrimination of carbon nanotubes according to their helicity.

Nano Lett

Laboratoire de Synthèse Bio-Organique, CNRS-UMR7175/LC1, Institut Gilbert Laustriat, Faculté de Pharmacie, Université Louis Pasteur, 74 route du Rhin, 67401 Illkirch, France.

Published: July 2008

Adsorption of specifically designed and geometrically constrained polyaromatic amphiphiles on single-walled carbon nanotubes (SWNTs) was found to be selective of the nanotube helicity angle. Starting from the same SWNT mixture, photoluminescence and resonant Raman spectroscopies show that a pentacenic-based amphiphile leads to the solubilization of armchair SWNTs and that a quaterrylene-based amphiphile leads to the solubilization of zigzag SWNTs. The results were predicted by the design of the two amphiphiles and are consistent with a supramolecular recognition of the nanotube graphene-type atomic structure by the aromatic part of the molecules through optimized pi-pi-stacking interactions.

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Source
http://dx.doi.org/10.1021/nl0803141DOI Listing

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