FOURIER TRANSFORM EMISSION SPECTROSCOPY OF THE A$^{2}$$\Pi$--X$^{2}$$\Sigma$$^{+}$ (RED) SYSTEM OF $^{13}$C$^{14}$N.
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Date
2012
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Ohio State University
Abstract
High resolution emission spectra of the A$^{2}$$\Pi$--X$^{2}$$\Sigma$$^{+}$ transition of $^{13}$C$^{14}$N have been measured in the 15000--24000 cm$^{-1}$ region. Molecules were produced by the reaction of $^{13}$CH$_{4}$ and $^{14}$N$_{2}$ in an active nitrogen afterglow discharge. The spectra were recorded using the Fourier transform spectrometer associated with the McMath-Pierce Solar Telescope of the National Solar Observatory. A rotational analysis of 27 bands involving the excited state vibrational levels v$^{\prime}$ = 9--22 and the ground state vibrational levels up to v$^{\prime\prime}$ = 12 has been obtained. A much improved set of spectroscopic constants have been determined for the v = 0--22 vibrational levels of the A$^{2}$$\Pi$ state by combining the present measurements with those reported previously for the v = 0--8 vibrational levels of the A$^{2}$$\Pi$ state and existing infrared and millimeter-wave measurements of $^{13}$C$^{14}$N. The 6--3, 7--4, 8--5 and 9--6 bands of the B$^{2}$$\Sigma$$^{+}$--A$^{2}$$\Pi$ transition were also identified in the 23300--24000 cm$^{-1}$ region and were included in the final analysis. An experimental line list and calculated term values are provided.
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Author Institution: Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK; Department of Chemistry, University of Arizona, Tucson, AZ 85721, USA; Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529 USA; Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK