Millimeter-wave spectrum of the C4v molecule iodine oxygen pentafluoride IOF5: K-doubling of the |k| = 2 transitions in the ground state spectrum |
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| Authors: | P.N. Brier M.J. Winrow |
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| Affiliation: | Chemistry Department, The University, Manchester M13 9PL, England |
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| Abstract: | Measurements are reported for the rotational spectrum of the C4v molecule IOF5 in the ground vibrational state in the range 30–75 GHz (J7 ← 6 to J17 ← 16). The K-doubling of |k| = 2 transitions due to an off-diagonal centrifugal distortion interaction of the type (Δl, Δk) = (0, ±4) has been observed. The centrifugal distortion constants DJ, DJK, and R6 have been determined as 0.139(2) kHz, 0.107(4) kHz, and 21(2) Hz, respectively. |
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