OBSERVATION OF SMALL SPLITTINGS IN THE VIBRATION-ROTATION SPECTRUM OF $PF5$
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Date
1987
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Ohio State University
Abstract
We have used the microwave modulation sidebands $CO_{2}$ laser source for sub-Doppler spectroscopy of $PF_{5}$ in the $10 \mu m$ $region,^{1,2}$ where a great number of spectral lines have been observed corresponding to the fundamental and many hot bands of the $\nu_{3}$ transition. Under high resolution $(\Delta_{\nu}\sim 50 kHz)$ many of the spectral lines for the fundamental band, as well as various hot bands, are split by about $500kHz \sim 1MHz$. For most cases the two components of the split lines have about equal intensity. The relation of the observed splitting with the possible pseudorotation of $PF_{5}{^{3}}$ is being investigated.
Description
$^{1}$ H. Kuze and M. Takami, J. Chem. Phys., 80, 2314 (1984). $^{2}$ V. Dana, J. Borde, L. Henry and A. Valentin, J. Mol. Spectros., 114, 42 (1985). $^{3}$ B. J. Dalton, J. Brocas and D. Fastenakel, J. Mol. Phys., 31, 1887 (1976)
Author Institution: Department of Chemistry and Department of Astronomy and Astrophysics, The University of Chicago
Author Institution: Department of Chemistry and Department of Astronomy and Astrophysics, The University of Chicago