title: Vibrational overtone spectroscopy of three-membered rings.
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.
authors.affiliation: Chemistry Department, Smith College, Clark Science Center, Northampton, MA 01063, USA. shsieh@email.smith.edu
authors.forename: Shizuka
authors.initials: S
authors.lastname: Hsieh
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Miller
authors.forename: A Helena
authors.initials: AH
authors.lastname: Södergren
authors.forename: Henrik G
authors.initials: HG
authors.lastname: Kjaergaard