ELECTRIC AND MAGNETIC PROPERTIES OF OCS IN THE 01$^{1}$0 VIBRATIONAL STATE
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Date
1972
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Ohio State University
Abstract
We have measured the $\Delta J = 0$, 1-doubling transitions in the first excited state of the bending vibration of $^{16}O^{12} C^{32} S $ with the molecular beam electric resonance method. A least squares computer program was used to fit the transition frequencies (with an experimental accuracy of 100 Hz) for $J = 1$ through 12 to the equation $$ \nu = \frac{(v_{2} +1)}{2} [q_{v} J(J+1) + \mu_{v} J^{2} (J+1)^{2} + \Delta HJ^{3} (J+1)^{3} ] $$ The $X^{2}$ of the fit was 2.5 and the resulting constants are: $q_{v} = 6361.413(5) kH_{z}$, $\mu_{v} = - 4.27(5) H_{z}$, and $\mid \Delta H \mid < 8 \times 10^{-4} H_{z}$ , with the uncertainties representing twice the standard deviations. The Zeeman effect was measured for J = 3, 4, and 5 in a magnetic field $B=8 $kG. The results for the magnetic moment $(\vec{G})$ and the susceptibility $(\vec{X})$ tensor are: \begin{eqnarray*} g_{1} = -0.02930(4); g_\parallel -g_\perp =0.0905(5); \\ g_{xx}-g_{yy}=+ 0.00023(2); X_\perp - X_\parallel =+2.38(10) ^{kHz} / (kG)^{2} \\ \mbox{ and } X_{xx} - X_{yy} =-0.03(3) ^ {kHz}/(kG)^{2}. \end{eqnarray*} The experimental accuracy in the frequencies was 300 - 500 Hz and the signal to noise ratio was about 4. The provisional result for the electric dipole moment is: $\mu = 0.70430(6)D$.
Description
Author Institution: Department of Physics, University of Nijmegen