Abstract
IN connexion with the investigation of a new band system of the NO molecule (B′–X2Π)1 we photographed the emission spectra of 15NO-gas. For the preparation of this gas we are very grateful to Prof. Clusius. The region investigated extends from 1300 to 2200 A. The spectrograph used was a 1-m. vacuum grating (8 A./mm. dispersion). An uncondensed discharge of 250 m.amp. through a tube 20 cm. in length and 4 mm. in diameter, containing circulating helium at a pressure of 4 mm. mercury, formed the source of light. To this a small amount of 15NO was added. We observed bands of NO and N2+. A provisional measurement of the isotope splittings has been carried out.
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BAER, P., MIESCHER, E. Band Spectra in the Schumann Region of NO and N2+ with Enriched Nitrogen-15. Nature 169, 581 (1952). https://doi.org/10.1038/169581a0
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DOI: https://doi.org/10.1038/169581a0
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