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  • Title: Vibrational overtone spectroscopy of three-membered rings.
    Author: Hsieh S, Miller BJ, Södergren AH, Kjaergaard HG.
    Journal: J Phys Chem A; 2007 Jun 28; 111(25):5415-21. PubMed ID: 17539614.
    Abstract:
    We have recorded vapor-phase photoacoustic spectra of cyclopropane, ethylene oxide, and ethylene sulfide in the third, fourth, and fifth CH-stretching overtone regions. We have used a harmonically coupled anharmonic oscillator local mode model to facilitate analysis of the spectra. Fermi resonance between the CH-stretching and HCH-bending vibrations is essential to explain the observed wide and multistructured CH-stretching overtone bands. A number of weak combination bands can account for the remaining experimental features observed to the blue of the CH-stretching regions. We have reassigned the fundamental spectra of these three-membered rings.
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