Abstract
WE have recently prepared 40 litres of monodeuteromethane and examined its absorption spectrum in the photographic infra-red from 12,000 A. to 6000 A. under the high dispersion of a grating spectrograph. Examination of our plates reveals complete absence of even the strongest lines of ordinary methane ; absence of the heavier methanes was shown by density determinations carried out on a specially fractionated sample.
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References
W. H. J. Childs, Proc. Roy. Soc., A, 153, 555 (1936).
H. Verleger, Z. Phys., 98, 342 (1936).
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CHILDS, W., JAHN, H. Absorption Spectrum of Heavy Methane (CH3D) in the Photographic Infra-Red. Nature 138, 285 (1936). https://doi.org/10.1038/138285b0
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DOI: https://doi.org/10.1038/138285b0
