MEASUREMENT OF THE $T_{2}$-RELAXATION TIMES AND THE PRESSURE-INDUCED FREQUENCY SHIFTS OF THE J = 0-1 HYPERFINE LINES OF $CH_{3}^{35}C1$

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Title: MEASUREMENT OF THE $T_{2}$-RELAXATION TIMES AND THE PRESSURE-INDUCED FREQUENCY SHIFTS OF THE J = 0-1 HYPERFINE LINES OF $CH_{3}^{35}C1$
Creators: Hom, Richard C.; Coy, Stephen L.
Issue Date: 1977
Publisher: Ohio State University
Abstract: The $T_{2}$-relaxation times and the pressure-induced frequency shifts of the three J = 0-1 hyperfine lines of $CH_{3}^{35}C1$ have been measured by Stark-switched transient emission microwave spectroscopy. The linewidths, $1/2\pi T_{2}$, and the lineshifts, corrected for wall collisions and the Doppler effect, have been found to be equal for the three transitions. The extrapolated zero-pressure resonances agree well with the beam maser frequencies reported by Kukolich and $Nelson.^{1}$ A comparison of the lineshifts will be made with steady state $experiments^{2}$ and theoretical $calculations.^{3}$
Description: $^{1}$S. G, Kukolich and A. C. Nelson, J. Amer. Chem. Soc. 95, 680 (1973). $^{2}$P. L. Hewitt and R. W. Parsons, Phys. Lett. 45A, 21 (1973); W. Wensink, H. A, Dijkerman, and R. W. Parsons, Phys. Lett. 50A, 331 (1974); W. R. MacGillivray, J. Phys. B9, 2511 (1976). 3P. W. Anderson, Phys. Rev. 76, 647 (1949); P. L. Hewitt, J. Quant. Spectrosc. Radiat. Transfer 16, 499 (1976); B. S. Frost, J. Phys. B9, 1001 (1976); J. S. Murphy and J. E. Boggs, J. Chem. Phys. 47, 691 (1967).
Author Institution: Department of Chemistry, Harvard University
URI: http://hdl.handle.net/1811/10005
Other Identifiers: 1977-FD-6
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