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Scientific article
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Resonance Raman Optical Activity Spectra of Single-Walled Carbon Nanotube Enantiomers

Published inThe journal of physical chemistry letters, vol. 7, no. 2, p. 221-225
Publication date2016
Abstract

We present experimental Raman optical activity (ROA) spectra of enantio-enriched single-walled carbon nanotubes (SWCNTs). Enantiomeric samples of (6,5) SWCNTs were prepared using nonlinear density gradient ultracentrifugation (DGU). Upon excitation at 2.33 eV, remarkably strong G-band signals are obtained due to strong resonance enhancement with the E22S transition of (6,5) SWCNTs. Enhancement allows measuring the vibrational optical activity (VOA) at unusually low concentrations. The obtained results are in good agreement with the single-excited-state theory (SES). To our knowledge, these are the first experimental VOA spectra of SWCNTs.

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MAGG, Martin et al. Resonance Raman Optical Activity Spectra of Single-Walled Carbon Nanotube Enantiomers. In: The journal of physical chemistry letters, 2016, vol. 7, n° 2, p. 221–225. doi: 10.1021/acs.jpclett.5b02612
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ISSN of the journal1948-7185
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