Raman spectroscopy of holey nanographene C216

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Ali Maghsoumi - , Polytechnic University of Milan (Author)
  • Uliana Beser - , Max Planck Institute for Polymer Research (Author)
  • Xinliang Feng - , Chair of Molecular Functional Materials (cfaed), Max Planck Institute of Microstructure Physics (Author)
  • Akimitsu Narita - , Max Planck Institute for Polymer Research (Author)
  • Klaus Müllen - , Max Planck Institute for Polymer Research (Author)
  • Chiara Castiglioni - , Polytechnic University of Milan (Author)
  • Matteo Tommasini - , Polytechnic University of Milan (Author)

Abstract

We report a detailed investigation by Raman spectroscopy of the holey nanographene C216, a hexagon-shaped disk with armchair edges (1.4 nm long), from which the central aromatic ring is missing. Density functional theory (DFT) calculations allow to assign the main features of the Raman spectra that have been recorded with several excitation wavelengths. In the Raman spectra, we observe signatures of the hole in the structure, several G and D modes, as well as their overtones and combinations—up to third order.

Details

Original languageEnglish
Pages (from-to)2301-2316
Number of pages16
JournalJournal of Raman spectroscopy
Volume52
Issue number12
Publication statusPublished - Dec 2021
Peer-reviewedYes

Keywords

ASJC Scopus subject areas

Keywords

  • DFT modeling, G and D overtones and combinations, graphene molecules, multi-wavelength Raman, polycyclic aromatic hydrocarbons