Abstract
THE comparison between the band spectra of hydrides and deutrides has shown, as is well known, that the ratio 2 of the reduced masses, for example (where (AgH = MmH/(M + mH), AgD = MmD/(M + mD), mH = mass of the proton, mD = that of the deuton), calculated in this way, does not agree with the ratio 2 as deduced from the atomic weights. As a possible explanation, E. Hulthén and W. Hoist1 have suggested that the electronic system takes part in the rotation and vibration of the molecule and gives a contribution to the effective moment of inertia.
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Hoist and Hulthén, NATURE, 133, 496, 796; 1934. Z. Phys., 90, 712; 1934.
Jensen, Z. Phys., 77, 722; 1932.
Nagy, ibid., 91, 105; 1934.
E. Hulthén and E. Knave, Physica, in press. I am indebted to the authors for being informed of the results before publication.
E. Knave, “Dissertation”, Stockholm, 1932.
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HULTHÉN, L. Isotope Effect in Band Spectra of Hydrides and Deutrides. Nature 135, 543 (1935). https://doi.org/10.1038/135543a0
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DOI: https://doi.org/10.1038/135543a0
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