Near-infrared fourier transform Raman spectra of protonated and deuterated trans-azobenzene isotopomers

Vilko Smrečki, Goran Baranović, G. Keresztury, Zlatko Meić

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Near-infrared Fourier transform (NIR FT) Raman spectra of five trans-azobenzene isotopomers and their protonated and deuterated forms were recorded. Trifluoroacetic acid was found to be a good protonation agent for measuring Raman spectra of protonated azobenzene. An assignment of the most relevant vibrational modes (N=N stretching and N-H/N-2H in-plane bending) of the protonated and deuterated species is proposed. The N=N stretching band in trans-azobenzene isotopomers decreases by about 40 cm-1 upon protonation, while it varies within ± 10 cm-1 upon deuteration with respect to the unprotonated (undeuterated) form. A comparison is made with the protonated form of the isoelectronic trans-N-benzylideneaniline.

Original languageEnglish
Pages (from-to)405-408
Number of pages4
JournalJournal of Molecular Structure
Volume408-409
DOIs
Publication statusPublished - Jun 1 1997

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Fourier Analysis
Raman scattering
Fourier transforms
Protonation
Raman spectra
Infrared radiation
Stretching
Trifluoroacetic Acid
vibration mode
acids
azobenzene

Keywords

  • NIR FT Raman spectra
  • Protonation
  • Trans-Azobenzene

ASJC Scopus subject areas

  • Structural Biology
  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Near-infrared fourier transform Raman spectra of protonated and deuterated trans-azobenzene isotopomers. / Smrečki, Vilko; Baranović, Goran; Keresztury, G.; Meić, Zlatko.

In: Journal of Molecular Structure, Vol. 408-409, 01.06.1997, p. 405-408.

Research output: Contribution to journalArticle

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