The Microwave Spectrum of Sulfur Dioxide

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Abstract
The K‐band microwave spectrum of sulfur dioxide has been reinvestigated with results which are in agreement with the main points of the previously reported analysis by Dailey, Golden, and Wilson. Some additional lines have been assigned, and new rotational constants have been derived which permit considerably closer agreement between observed and computed frequencies. From two of these the structural parameters r(S–O) = 1.432A and ≰ (O–S–O) = 119.53° can be obtained. The remaining discrepancy (of the order of 15 mc for ten lines involving J values up to J = 35) has been attributed to inaccuracies in the centrifugal distortion computation.
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