Raman spectroscopic characterization of different regioisomers of monoacyl and diacyl chlorogenic acid

Pinkie J. Eravuchira, Rasha M. El-Abassy, Sagar Deshpande, Marius F. Matei, Soni Mishra, Poonam Tandon, Nikolai Kuhnert, Arnulf Materny

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

We have investigated the Raman spectra of different regioisomeric forms of monoacyl and diacyl chlorogenic acids. Raman spectra of 3-caffeoylquinic acid, 4-caffeoylquinic acid, 5-caffeoylquinic, 3,4-di-O-caffeoylquinic acid, 3,5-di-O-caffeoylquinic acid, 4,5-di-O-caffeoylquinic acid, and a synthetic derivative of 3-feruloylqunic acid were recorded using visible Raman spectroscopic technique and vibrational bands are assigned. Additionally, a theoretical study of 5-caffeoylquinic acid was performed using Gaussian 03.

Original languageEnglish (US)
Pages (from-to)10-16
Number of pages7
JournalVibrational Spectroscopy
Volume61
DOIs
StatePublished - Jul 1 2012

Keywords

  • Chlorogenic acids
  • DFT calculations
  • Raman spectroscopy
  • Regioisomers

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