Design principles of chiral carbon nanodots help convey chirality from molecular to nanoscale level

Luka Ðorđević (), Francesca Arcudi (), Alessandro D’Urso, Michele Cacioppo, Norberto Micali, Thomas Bürgi, Roberto Purrello and Maurizio Prato ()
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Luka Ðorđević: University of Trieste
Francesca Arcudi: University of Trieste
Alessandro D’Urso: University of Catania
Michele Cacioppo: University of Trieste
Norberto Micali: CNR-IPCF Istituto per i Processi Chimico-Fisici
Thomas Bürgi: University of Geneva
Roberto Purrello: University of Catania
Maurizio Prato: University of Trieste

Nature Communications, 2018, vol. 9, issue 1, 1-8

Abstract: Abstract The chirality of (nano)structures is paramount in many phenomena, including biological processes, self-assembly, enantioselective reactions, and light or electron spin polarization. In the quest for new chiral materials, metallo-organic hybrids have been attractive candidates for exploiting the aforementioned scientific fields. Here, we show that chiral carbon nanoparticles, called carbon nanodots, can be readily prepared using hydrothermal microwave-assisted synthesis and easily purified. These particles, with a mean particle size around 3 nm, are highly soluble in water and display mirror-image profile both in the UV–Vis and in the infrared regions, as detected by electronic and vibrational circular dichroism, respectively. Finally, the nanoparticles are used as templates for the formation of chiral supramolecular porphyrin assemblies, showing that it is possible to use and transfer the chiral information. This simple (and effective) methodology opens up exciting opportunities for developing a variety of chiral composite materials and applications.

Date: 2018
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DOI: 10.1038/s41467-018-05561-2

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