Infrared spectra of oriented thiosemicarbazide crystals. Evidence of absorption frequency changes with polarization direction

G. Keresztury, M. P. Marzocchi

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The infrared spectra in polarized light of oriented crystalline samples of thiosemicarbazide were measured and the approximate transition moment directions of most infrared active vibrations were determined. On the basis of these data a vibrational assignment is proposed. A phenomenon of continuous frequency shifts of the absorption maxima with the rotation of the plane of the polarized light was observed for several bands. The effect is interpreted in terms of intermode mixing between diffuse levels and should occur for all monoclinic and trichnic crystals which show spectra with broad bands.

Original languageEnglish
Pages (from-to)117-123
Number of pages7
JournalChemical Physics
Volume6
Issue number1
DOIs
Publication statusPublished - 1974

Fingerprint

Light polarization
polarized light
infrared spectra
Polarization
Infrared radiation
Crystals
polarization
frequency shift
crystals
Crystalline materials
broadband
moments
vibration
thiosemicarbazide
Direction compound

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Infrared spectra of oriented thiosemicarbazide crystals. Evidence of absorption frequency changes with polarization direction. / Keresztury, G.; Marzocchi, M. P.

In: Chemical Physics, Vol. 6, No. 1, 1974, p. 117-123.

Research output: Contribution to journalArticle

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