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VIBRATIONAL SPECTRA OF TRANS-1,2-DIFLUOROETHYLENE OXIDE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/12069

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Title: VIBRATIONAL SPECTRA OF TRANS-1,2-DIFLUOROETHYLENE OXIDE
Creators: Agopovich, J.; Craig, Norman C.; Gillies, C. W.; McGarvey, D. J.
Issue Date: 1985
Abstract: Infrared and Raman spectra have been recorded for trans-$CFHCFHO^{18}$ and trans-CFDCFDO. From good band shapes in the gas-phase infrared spectra, Raman depolarization ratios, and close parallels with the spectra of trans-CFHCFHCH$_{2}$ and CFDCFDCH$_{2}$ other than for the $CH_{2}$-rich modes, we have secured a virtually complete assignment of the vibrational fundamentals of the ethylene oxides. This work marks the first observation of the effect on vibrational spectra of heavy atom substitution on a three-atom ring system. Only a limited-range survey of the infrared spectrum of the normal isotopic species of trans-difluoroethylene oxide is available. However, frequency shifts (or non-shifts) due to 0-18 substitution imply that $\nu{_{2}}$(a) at $1480 cm^{-1}$ is largely CC (and CF) stretching, whereas $\nu_{6}$(a) at $950 cm^{-1}$ contains appreciable COC stretching and $V_{7}$(a) at about $520 cm^{-1}$ contains appreciable COC bending.
URI: http://hdl.handle.net/1811/12069
Other Identifiers: 1985-FA-7
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