New chiral ECD-Raman spectroscopy of atropisomeric naphthalenediimides

Chem Commun (Camb). 2022 Apr 5;58(28):4524-4527. doi: 10.1039/d1cc06974h.

Abstract

In this study, we found that a recently discovered ECD-Raman effect dominated over the natural Raman optical activity in a series of atropisomeric naphthalenediimides, and we investigated the kind of information about the molecular structure that could be obtained from the spectra. The ECD-Raman effect is polarised Raman scattering modulated by electronic circular dichroism. We showed that the spectra significantly depended on the substitution of the solute and/or the change of the solvent. Moreover, the spectra could be well-predicted by the theory, thus providing an interesting tool to monitor the chirality of the binaphthyl compounds.

MeSH terms

  • Circular Dichroism
  • Molecular Structure
  • Solutions
  • Solvents / chemistry
  • Spectrum Analysis, Raman*

Substances

  • Solutions
  • Solvents