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FOURIER TRANSFORM MICROWAVE AND INFRARED SPECTROSCOPIC INVESTIGATION OF PROPIOLACTONE

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/38369

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dc.creator Chen, Ziqiu en_US
dc.creator Wijngaarden, Jennifer Van en_US
dc.date.accessioned 2009-07-29T13:05:20Z
dc.date.available 2009-07-29T13:05:20Z
dc.date.issued 2009 en_US
dc.identifier 2009-TC-03 en_US
dc.identifier.uri http://hdl.handle.net/1811/38369
dc.description D. W. Boone, C O. Britt and J. E. Boggs \textit{J. Chem. Phys. en_US
dc.description Author Institution: Department of Chemistry, University of Manitoba, Winnipeg MB R3T 2N2 Canada en_US
dc.description.abstract The pure rotational spectrum of the four-membered ester ring propiolactone (C${_3}$H${_4}$O${_2}$) has been measured in a supersonic jet between 7 and 22 GHz using Fourier transform microwave (FTMW) spectroscopy. For the normal isotopologue, a total of 19 \textit{a-} and \textit{b-}type transitions have been recorded. Fifteen transitions due to three different $^{13}$C isotopologues have also been observed. The microwave spectrum was analyzed to obtain an improved set of ground state rotational constants in comparison to earlier microwave experiments \underline{\textbf{43}} (1190), 1965.}. The new set of rotational parameters was used to predict the rovibrational band structure of the lowest frequency modes of propiolactone. A total of 12 vibrational band origins have been observed between 400 and 1500 cm$^{-1}$ using the far infrared beamline of the Canadian Light Source coupled to a Bruker IFS125HR spectrometer. The spectra were recorded with a resolution of 0.000969 cm$^{-1}$ and although the intensities of the bands vary, 9 bands are of sufficient quality for complete rovibrational assignment. The progress of the assignment of this rich spectrum will be discussed. en_US
dc.language.iso English en_US
dc.title FOURIER TRANSFORM MICROWAVE AND INFRARED SPECTROSCOPIC INVESTIGATION OF PROPIOLACTONE en_US
dc.type Article en_US