Terahertz (6-15 THz) spectroscopy and numerical modeling of intermolecular vibrations in benzoic acid and its derivatives

Lucia M. Lepodise, Josip Horvat, R. A. Lewis

Research output: Contribution to journalArticle

4 Citations (Scopus)


Terahertz spectroscopy of benzoic acid (BA) and two of its derivatives, 2-hydroxybenzoic acid (2OH-BA) and 3-hydroxybenzoic acid (3OH-BA), has been investigated in the spectral region 200 to 500 cm-1 (6.06 to 15.15 THz). The spectra show distinct absorption features. There is agreement between some of the absorption lines observed for these compounds, despite a shift in energy, which is attributed to the differences in the molecular structures. Numerical modeling gave corresponding absorption lines, and this helped in the assignment. Temperature dependence studies revealed that most of the absorption lines are composite lines in this frequency region.

Original languageEnglish
Pages (from-to)590-596
Number of pages7
JournalApplied Spectroscopy
Issue number5
Publication statusPublished - Jan 1 2015


All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Spectroscopy

Cite this