A test of new empirical formulas for the prediction of hyperfine component frequencies in 127I2

Author： Razet A.   Picard S.  

Publisher： IOP Publishing

ISSN： 0026-1394

Source： Metrologia, Vol.34, Iss.2, 1997-05, pp. : 181-186

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Abstract

Abstract. The hyperfine constants DeltaeQq, Delta C, Delta D and Delta delta are necessary for the reproduction or simulation of a hyperfine spectrum in iodine. A new empirical formula predicting DeltaeQq to calculate any hyperfine component frequency of a ro-vibrational transition in the B-X system of 127I2, , covering v'=6 to v'=43, is presented here. The accuracy of the prediction of Delta C, Delta D and Delta delta are discussed. The predicted value of DeltaeQq agrees well with the recently presented value calculated for an observed hyperfine spectrum at 637 nm.

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