Abstract
I HAVE recently directed attention in a letter which has been sent to the Physical Review for publication to some new nitrogen bands. Three of these bands degrading to the violet and having wave lengths 2536, 2635 and 2740 A., have been found to increase in intensity as the pressure is lowered. This is true also of the new Appleyard-van der Ziel bands recently discussed by van der Ziel, and of the new system that is reported by me in the above-mentioned letter. The three bands have been identified as (0, 1), (0, 2) and (0, 3) bands of a new system, and their frequency differences agree well with those of the lower electronic state of the Appleyard-van der Ziel bands.
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KAPLAN, J. A New Band System in Nitrogen. Nature 134, 538 (1934). https://doi.org/10.1038/134538c0
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DOI: https://doi.org/10.1038/134538c0
